java.sql.DatabaseMetaData Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package java.sql;
/**
* An interface which provides comprehensive information about the database
* management system and its supported features.
*
* This interface is implemented by JDBC driver vendors in order to provide
* information about the underlying database capabilities in association with
* the JDBC driver.
*
* Some of the methods in this interface take string parameters which are
* patterns. Within these string patterns, {@code '%'} and {@code '_'}
* characters have special meanings. {@code '%'} means
* "match any substring of 0 or more characters". {@code '_'} means
* "match any character". Only metadata entries that match the pattern are
* returned. If such a search pattern string is set to {@code null}, that
* argument's criteria are dropped from the search.
*/
public interface DatabaseMetaData extends Wrapper {
/**
* States that it may not be permitted to store {@code NULL} values.
*/
public static final short attributeNoNulls = 0;
/**
* States that {@code NULL} values are definitely permitted.
*/
public static final short attributeNullable = 1;
/**
* States that whether {@code NULL} values are permitted is unknown.
*/
public static final short attributeNullableUnknown = 2;
/**
* States the best row identifier is NOT a pseudo column.
*/
public static final int bestRowNotPseudo = 1;
/**
* States that the best row identifier is a pseudo column.
*/
public static final int bestRowPseudo = 2;
/**
* States that the remainder of the current session is used as the scope for
* the best row identifier.
*/
public static final int bestRowSession = 2;
/**
* States that best row identifier scope lasts only while the row is being
* used.
*/
public static final int bestRowTemporary = 0;
/**
* States that the remainder of the current transaction is used as the scope
* for the best row identifier.
*/
public static final int bestRowTransaction = 1;
/**
* States that the best row identifier may or may not be a pseudo column.
*/
public static final int bestRowUnknown = 0;
/**
* States that the column must not allow {@code NULL} values.
*/
public static final int columnNoNulls = 0;
/**
* States that the column definitely allows {@code NULL} values.
*/
public static final int columnNullable = 1;
/**
* States that it is unknown whether the columns may be nulled.
*/
public static final int columnNullableUnknown = 2;
/**
* For the column {@code UPDATE_RULE}, states that when the primary key is
* updated, the foreign key (imported key) is changed accordingly.
*/
public static final int importedKeyCascade = 0;
/**
* States that the evaluation of foreign key constraints is deferred (delayed
* until commit).
*/
public static final int importedKeyInitiallyDeferred = 5;
/**
* States that the evaluation of foreign key constraint is {@code IMMEDIATE}
* .
*/
public static final int importedKeyInitiallyImmediate = 6;
/**
* For the columns {@code UPDATE_RULE} and {@code DELETE_RULE}, states that
* if the primary key has been imported, it cannot be updated or deleted.
*/
public static final int importedKeyNoAction = 3;
/**
* States that the evaluation of foreign key constraint must not be {@code
* DEFERRED}.
*/
public static final int importedKeyNotDeferrable = 7;
/**
* States that a primary key must not be updated when imported as a foreign
* key by some other table. Used for the column {@code UPDATE_RULE}.
*/
public static final int importedKeyRestrict = 1;
/**
* States that when the primary key is modified (updated or deleted) the
* foreign (imported) key is changed to its default value. Applies to the
* {@code UPDATE_RULE} and {@code DELETE_RULE} columns.
*/
public static final int importedKeySetDefault = 4;
/**
* States that when the primary key is modified (updated or deleted) the
* foreign (imported) key is changed to {@code NULL}. Applies to the {@code
* UPDATE_RULE} and {@code DELETE_RULE} columns.
*/
public static final int importedKeySetNull = 2;
/**
* States that the column stores {@code IN} type parameters.
*/
public static final int procedureColumnIn = 1;
/**
* States that this column stores {@code INOUT} type parameters.
*/
public static final int procedureColumnInOut = 2;
/**
* States that this column stores {@code OUT} type parameters.
*/
public static final int procedureColumnOut = 4;
/**
* States that the column stores results.
*/
public static final int procedureColumnResult = 3;
/**
* States that the column stores return values.
*/
public static final int procedureColumnReturn = 5;
/**
* States that type of the column is unknown.
*/
public static final int procedureColumnUnknown = 0;
/**
* States that {@code NULL} values are not permitted.
*/
public static final int procedureNoNulls = 0;
/**
* States that the procedure does not return a result.
*/
public static final int procedureNoResult = 1;
/**
* States that {@code NULL} values are permitted.
*/
public static final int procedureNullable = 1;
/**
* States that it is unknown whether {@code NULL} values are permitted.
*/
public static final int procedureNullableUnknown = 2;
/**
* States that it is unknown whether or not the procedure returns a result.
*/
public static final int procedureResultUnknown = 0;
/**
* States that the procedure returns a result.
*/
public static final int procedureReturnsResult = 2;
/**
* States that the value is an SQL99 {@code SQLSTATE} value.
*/
public static final int sqlStateSQL99 = 2;
/**
* States that the value is an SQL {@code CLI SQLSTATE} value as defined by
* the X/Open standard.
*/
public static final int sqlStateXOpen = 1;
/**
* States that this table index is a clustered index.
*/
public static final short tableIndexClustered = 1;
/**
* States that this table index is a hashed index.
*/
public static final short tableIndexHashed = 2;
/**
* States this table's index is neither a clustered index, not a hashed
* index, and not a table statistics index; i.e. it is something else.
*/
public static final short tableIndexOther = 3;
/**
* States this column has the table's statistics, and that it is returned in
* conjunction with the table's index description.
*/
public static final short tableIndexStatistic = 0;
/**
* States that a {@code NULL} value is NOT permitted for
* this data type.
*/
public static final int typeNoNulls = 0;
/**
* States that a {@code NULL} value is permitted for this data type.
*/
public static final int typeNullable = 1;
/**
* States that it is unknown if a {@code NULL} value is permitted for
* this data type.
*/
public static final int typeNullableUnknown = 2;
/**
* States that this column shall not be used for {@code WHERE} statements
* with a {@code LIKE} clause.
*/
public static final int typePredBasic = 2;
/**
* States that this column can only be used in a {@code WHERE...LIKE}
* statement.
*/
public static final int typePredChar = 1;
/**
* States that this column does not support searches.
*/
public static final int typePredNone = 0;
/**
* States that the column is searchable.
*/
public static final int typeSearchable = 3;
/**
* States that the version column is known to be not a pseudo column.
*/
public static final int versionColumnNotPseudo = 1;
/**
* States that this version column is known to be a pseudo column.
*/
public static final int versionColumnPseudo = 2;
/**
* States that the version column may be a pseudo column or not.
*/
public static final int versionColumnUnknown = 0;
/**
* States that the method DatabaseMetaData.getSQLStateType may returns an
* SQLSTATE value or not.
*/
public static final int sqlStateSQL = 2;
/**
* States that the parameter or column is an IN parameter
*/
public static final int functionColumnIn = 1;
/**
* States that the parameter or column is an INOUT parameter
*/
public static final int functionColumnInOut = 2;
/**
* States that the parameter or column is an OUT parameter
*/
public static final int functionColumnOut = 3;
/**
* States that the parameter or column is a return value
*/
public static final int functionReturn = 4;
/**
* States that the parameter of function is unknown
*/
public static final int functionColumnUnknown = 0;
/**
* States that the parameter or column is a column in a result set
*/
public static final int functionColumnResult = 5;
/**
* States that NULL values are not allowed
*/
public static final int functionNoNulls = 0;
/**
* States that NULL values are allowed
*/
public static final int functionNullable = 1;
/**
* States that whether NULL values are allowed is unknown
*/
public static final int functionNullableUnknown = 2;
/**
* States that it is not known whether the function returns a result or a
* table
*/
public static final int functionResultUnknown = 0;
/**
* States that the function does not return a table
*/
public static final int functionNoTable = 1;
/**
* States that the function returns a table.
*/
public static final int functionReturnsTable = 2;
/**
* Returns whether all procedures returned by {@link #getProcedures} can be
* called by the current user.
*
* @return {@code true} if all procedures can be called by the current user,
* {@code false} otherwise.
* @throws SQLException
* if there is a database error.
*/
public boolean allProceduresAreCallable() throws SQLException;
/**
* Returns whether all the tables returned by {@code getTables} can be used
* by the current user in a {@code SELECT} statement.
*
* @return {@code true} if all the tables can be used,{@code false}
* otherwise.
* @throws SQLException
* if there is a database error.
*/
public boolean allTablesAreSelectable() throws SQLException;
/**
* Returns whether a data definition statement in a transaction forces a {@code
* commit} of the transaction.
*
* @return {@code true} if the statement forces a commit, {@code false}
* otherwise.
* @throws SQLException
* if there is a database error.
*/
public boolean dataDefinitionCausesTransactionCommit() throws SQLException;
/**
* Returns whether the database ignores data definition statements within a
* transaction.
*
* @return {@code true} if the database ignores a data definition statement,
* {@code false} otherwise.
* @throws SQLException
* if there is a database error.
*/
public boolean dataDefinitionIgnoredInTransactions() throws SQLException;
/**
* Returns whether a visible row delete can be detected by calling
* {@link ResultSet#rowDeleted}.
*
* @param type
* the type of the {@code ResultSet} involved: {@code
* ResultSet.TYPE_FORWARD_ONLY}, {@code
* ResultSet.TYPE_SCROLL_INSENSITIVE}, or {@code
* ResultSet.TYPE_SCROLL_SENSITIVE}
* @return {@code true} if the visible row delete can be detected, {@code
* false} otherwise.
* @throws SQLException
* if there is a database error.
*/
public boolean deletesAreDetected(int type) throws SQLException;
/**
* Returns whether the return value of {@code getMaxRowSize} includes the
* SQL data types {@code LONGVARCHAR} and {@code LONGVARBINARY}.
*
* @return {@code true} if the return value includes {@code LONGVARBINARY}
* and {@code LONGVARCHAR}, otherwise {@code false}.
* @throws SQLException
* if there is a database error.
*/
public boolean doesMaxRowSizeIncludeBlobs() throws SQLException;
/**
* Returns a {@code ResultSet} describing a subset of the attributes of a
* specified SQL User Defined Type (UDT) for a specified schema and catalog.
* The subset is determined by restricting to those attributes whose
* name matches the {@code attributeNamePattern} and whose type name
* matches the {@code typeNamePattern}. Each row of the {@code ResultSet}
* describes one attribute, and the rows are ordered by the columns {@code TYPE_SCHEM},
* {@code TYPE_NAME} and {@code ORDINAL_POSITION}. Inherited attributes
* are not included.
*
* The columns of the returned {@code ResultSet} object have the following
* names and meanings:
*
* - {@code TYPE_CAT} - String - the type catalog name (possibly {@code
* null})
* - {@code TYPE_SCHEM} - String - the type schema name (possibly {@code
* null})
* - {@code TYPE_NAME} - String - the type name
* - {@code ATTR_NAME} - String - the attribute name
* - {@code DATA_TYPE} - int - the attribute type as defined in {@code
* java.sql.Types}
* - {@code ATTR_TYPE_NAME} - String - the attribute type name. This
* depends on the data source. For a {@code UDT} the name is fully
* qualified. For a {@code REF} it is both fully qualified and represents
* the target type of the reference.
* - {@code ATTR_SIZE} - int - the column size. When referring to char and
* date types this value is the maximum number of characters. When referring
* to numeric types is is the precision.
* - {@code DECIMAL_DIGITS} - int - how many fractional digits are
* supported
* - {@code NUM_PREC_RADIX} - int - numeric values radix
* - {@code NULLABLE} - int - whether {@code NULL} is permitted:
*
* - DatabaseMetaData.attributeNoNulls - {@code NULL} values not permitted
* - DatabaseMetaData.attributeNullable - {@code NULL} values definitely
* permitted
* - DatabaseMetaData.attributeNullableUnknown - unknown
*
*
* - {@code REMARKS} - String - a comment describing the attribute
* (possibly {@code null})
* - ATTR_DEF - String - Default value for the attribute (possibly {@code
* null})
* - {@code SQL_DATA_TYPE} - int - not used
* - SQL_DATETIME_SUB - int - not used
* - CHAR_OCTET_LENGTH - int - for {@code CHAR} types, the max number of
* bytes in the column
* - ORDINAL_POSITION - int - The index of the column in the table (where
* the count starts from 1, not 0)
* - IS_NULLABLE - String - {@code "NO"} = the column does not allow {@code
* NULL}s, {@code "YES"} = the column allows {@code NULL}s, "" = status unknown
* - {@code SCOPE_CATALOG} - String - if the {@code DATA_TYPE} is {@code REF},
* this gives the catalog of the table corresponding to the attribute's scope.
* NULL if the {@code DATA_TYPE} is not REF.
* - {@code SCOPE_SCHEMA} - String - if the {@code DATA_TYPE} is {@code REF},
* this gives the schema of the table corresponding to the attribute's scope.
* NULL if the {@code DATA_TYPE} is not REF.
* - {@code SCOPE_TABLE} - String - if the {@code DATA_TYPE} is {@code REF},
* this gives the name of the table corresponding to the attribute's scope.
* NULL if the {@code DATA_TYPE} is not REF.
* - {@code SOURCE_DATA_TYPE} - String - The source type for a user
* generated REF type or for a Distinct type. ({@code NULL} if {@code
* DATA_TYPE} is not DISTINCT or a user generated REF)
*
*
* @param catalog
* a catalog name. {@code null} is used to imply no narrowing of
* the search by catalog name. Otherwise, the name must match a
* catalog name held in the database, with "" used to retrieve
* those without a catalog name.
* @param schemaPattern
* a schema name pattern. {@code null} is used to imply no
* narrowing of the search by a schema name. Otherwise, the name
* must match a schema name in the database, with "" used to
* retrieve those without a schema name.
* @param typeNamePattern
* a type name. This pattern must match the type name stored in
* the database.
* @param attributeNamePattern
* an Attribute name. This pattern must match the attribute name as stored in
* the database.
* @return a {@code ResultSet}, where each row is an attribute description.
* @throws SQLException
* if there is a database error.
*/
public ResultSet getAttributes(String catalog, String schemaPattern,
String typeNamePattern, String attributeNamePattern)
throws SQLException;
/**
* Returns a list of a table's optimal set of columns that uniquely
* identify the rows. The results are ordered by {@code SCOPE} (see below).
*
* The results are returned as a table, with one entry for each column, as
* follows:
*
* - {@code SCOPE} - short - the {@code SCOPE} of the result, as follows:
*
* - {@code DatabaseMetaData.bestRowTemporary} - the result is very temporary,
* only valid while on the current row
* - {@code DatabaseMetaData.bestRowTransaction} - the result is good for remainder of
* current transaction
* - {@code DatabaseMetaData.bestRowSession} - the result is good for remainder of
* database session
*
*
* - {@code COLUMN_NAME} - String - the column name
* - {@code DATA_TYPE} - int - the Type of the data, as defined in {@code
* java.sql.Types}
* - {@code TYPE_NAME} - String - the Name of the type - database dependent.
* For UDT types the name is fully qualified
* - {@code COLUMN_SIZE} - int - the precision of the data in the column
* - {@code BUFFER_LENGTH} - int - not used
* - {@code DECIMAL_DIGITS} - short - number of fractional digits
* - {@code PSEUDO_COLUMN} - short - whether this is a pseudo column (e.g.
* an Oracle {@code ROWID}):
*
* - {@code DatabaseMetaData.bestRowUnknown} - it is not known whether this is
* a pseudo column
* - {@code DatabaseMetaData.bestRowNotPseudo} - the column is not pseudo
* - {@code DatabaseMetaData.bestRowPseudo} - the column is a pseudo column
*
*
*
*
* @param catalog
* a catalog name. {@code null} is used to imply no narrowing of
* the search by catalog name. Otherwise, the name must match a
* catalog name held in the database, with "" used to retrieve
* those without a catalog name.
* @param schema
* a schema name pattern. {@code null} is used to imply no
* narrowing of the search by schema name. Otherwise, the name
* must match a schema name in the database, with "" used to
* retrieve those without a schema name.
* @param table
* the table name. This must match the name of the table as
* declared in the database.
* @param scope
* the {@code SCOPE} of interest, values as defined above.
* @param nullable
* {@code true} = include columns that are nullable, {@code
* false} = do not include nullable columns.
* @return a {@code ResultSet} where each row is a description of a column
* and the complete set of rows is the optimal set for this table.
* @throws SQLException
* if there is a database error.
*/
public ResultSet getBestRowIdentifier(String catalog, String schema,
String table, int scope, boolean nullable) throws SQLException;
/**
* Returns the set of catalog names available in this database. The set is
* returned ordered by catalog name.
*
* @return a {@code ResultSet} containing the catalog names, with each row
* containing one catalog name (as a {@code String}) in the
* single column named {@code TABLE_CAT}.
* @throws SQLException
* if there is a database error.
*/
public ResultSet getCatalogs() throws SQLException;
/**
* Returns the separator that this database uses between a catalog name and
* table name.
*
* @return a String containing the separator.
* @throws SQLException
* if there is a database error.
*/
public String getCatalogSeparator() throws SQLException;
/**
* Returns the term that the database vendor prefers term for "catalog".
*
* @return a String with the vendor's term for "catalog".
* @throws SQLException
* if there is a database error.
*/
public String getCatalogTerm() throws SQLException;
/**
* Returns a description of access rights for a table's columns. Only access
* rights matching the criteria for the column name are returned.
*
* The description is returned as a {@code ResultSet} with rows of data for
* each access right, with columns as follows:
*
* - {@code TABLE_CAT} - String - the catalog name (possibly {@code null})
* - {@code TABLE_SCHEM} - String - the schema name (possibly {@code null})
* - {@code TABLE_NAME} - String - the table name
* - {@code COLUMN_NAME} - String - the Column name
* - {@code GRANTOR} - String - the grantor of access (possibly {@code
* null})
* - {@code PRIVILEGE} - String - Access right - one of SELECT, INSERT,
* UPDATE, REFERENCES,...
* - {@code IS_GRANTABLE} - String - {@code "YES"} implies that the
* receiver can grant access to others, {@code "NO"} if the receiver cannot
* grant access to others, {@code null} if unknown.
*
*
* @param catalog
* a catalog name. {@code null} is used to imply no narrowing of
* the search by catalog name. Otherwise, the name must match a
* catalog name held in the database, with "" used to retrieve
* those without a catalog name.
* @param schema
* a schema name pattern. {@code null} is used to imply no
* narrowing of the search by schema name. Otherwise, the name
* must match a schema name in the database, with "" used to
* retrieve those without a schema name.
* @param table
* the table name. This must match the name of the table as
* declared in the database.
* @param columnNamePattern
* the column name. This must match the name of a column in the
* table in the database.
* @return a {@code ResultSet} containing the access rights, one row for
* each privilege description.
* @throws SQLException
* if there is a database error.
*/
public ResultSet getColumnPrivileges(String catalog, String schema,
String table, String columnNamePattern) throws SQLException;
/**
* Returns a description of table columns available in a specified catalog.
* Only descriptions meeting the specified catalog, schema, table, and column
* names are returned.
*
* The descriptions are returned as a {@code ResultSet} conforming to the
* following data layout, with one row per table column:
*
* - {@code TABLE_CAT} - String - the catalog name (possibly {@code null})
* - {@code TABLE_SCHEM} - String - the schema name (possibly {@code null})
* - {@code TABLE_NAME} - String - the table name
* - {@code COLUMN_NAME} - String - the column name
* - {@code DATA_TYPE} - int - the SQL type as specified in {@code
* java.sql.Types}
* - {@code TYPE_NAME} - String - the name of the data type, (database-dependent,
* UDT names are fully qualified)
* - {@code COLUMN_SIZE} - int - the column size (the precision for numeric
* types, max characters for {@code char} and {@code date} types)
* - {@code BUFFER_LENGTH} - int - Not used
* - {@code DECIMAL_DIGITS} - int - maximum number of fractional digits
* - {@code NUM_PREC_RADIX} - int - the radix for numerical types
* - {@code NULLABLE} - int - whether the column allows {@code null}s:
*
* - DatabaseMetaData.columnNoNulls = may not allow {@code NULL}s
* - DatabaseMetaData.columnNullable = does allow {@code NULL}s
* - DatabaseMetaData.columnNullableUnknown = unknown {@code NULL} status
*
*
* - {@code REMARKS} - String - A description of the column (possibly
* {@code null})
* - {@code COLUMN_DEF} - String - Default value for the column (possibly
* {@code null})
* - {@code SQL_DATA_TYPE} - int - not used
* - {@code SQL_DATETIME_SUB} - int - not used
* - {@code CHAR_OCTET_LENGTH} - int - maximum number of bytes in the
* {@code char} type columns
* - {@code ORDINAL_POSITION} - int - the column index in the table (1 based)
* - {@code IS_NULLABLE} - String - {@code "NO"} = column does not allow
* NULLs, {@code "YES"} = column allows NULLs, "" = {@code NULL} status
* unknown
* - {@code SCOPE_CATALOG} - String - if the {@code DATA_TYPE} is {@code REF},
* this gives the catalog of the table corresponding to the attribute's scope.
* NULL if the {@code DATA_TYPE} is not REF.
* - {@code SCOPE_SCHEMA} - String - if the {@code DATA_TYPE} is {@code REF},
* this gives the schema of the table corresponding to the attribute's scope.
* NULL if the {@code DATA_TYPE} is not REF.
* - {@code SCOPE_TABLE} - String - if the {@code DATA_TYPE} is {@code REF},
* this gives the name of the table corresponding to the attribute's scope.
* NULL if the {@code DATA_TYPE} is not REF.
* - {@code SOURCE_DATA_TYPE} - String - The source type for a user
* generated REF type or for a Distinct type. ({@code NULL} if {@code
* DATA_TYPE} is not DISTINCT or a user generated REF)
*
*
* @param catalog
* a catalog name. {@code null} is used to imply no narrowing of
* the search by catalog name. Otherwise, the name must match a
* catalog name held in the database, with "" used to retrieve
* those without a catalog name.
* @param schemaPattern
* a schema name pattern. {@code null} is used to imply no
* narrowing of the search by schema name. Otherwise, the name
* must match a schema name in the database, with "" used to
* retrieve those without a schema name.
* @param tableNamePattern
* the table name. This must match the name of the table as
* declared in the database.
* @param columnNamePattern
* the column name. This must match the name of a column in the
* table in the database.
* @return the descriptions as a {@code ResultSet} with rows in the form
* defined above.
* @throws SQLException
* if there is a database error.
*/
public ResultSet getColumns(String catalog, String schemaPattern,
String tableNamePattern, String columnNamePattern)
throws SQLException;
/**
* Returns the database connection that created this metadata.
*
* @return the connection to the database.
* @throws SQLException
* if there is a database error.
*/
public Connection getConnection() throws SQLException;
/**
* Returns a list of foreign key columns in a given foreign key table that
* reference the primary key columns of a supplied primary key table. This
* describes how one table imports the key of another table. It would be
* expected to return a single foreign key - primary key pair in most cases.
*
* The descriptions are returned as a {@code ResultSet} with one row for
* each foreign key, with the following layout:
*
* - {@code PKTABLE_CAT} - String - from the primary key table : Catalog
* (possibly {@code null})
* - {@code PKTABLE_SCHEM} - String - from the primary key table : Schema
* (possibly {@code null})
* - {@code PKTABLE_NAME} - String - from the primary key table : name
* - {@code PKCOLUMN_NAME} - String - from the primary key column : name
* - {@code FKTABLE_CAT} - String - from the foreign key table : the
* catalog name being exported (possibly {@code null})
* - {@code FKTABLE_SCHEM} - String - from the foreign key table : the schema name
* being exported (possibly {@code null})
* - {@code FKTABLE_NAME} - String - from the foreign key table : the name being
* exported
* - {@code FKCOLUMN_NAME} - String - from the foreign key column : the name being
* exported
* - {@code KEY_SEQ} - short - the sequence number (in the foreign key)
* - {@code UPDATE_RULE} - short - a value giving the rule for how to treat the corresponding foreign key when a primary
* key is updated:
*
* - {@code DatabaseMetaData.importedKeyNoAction} - don't allow the
* primary key to be updated if it is imported as a foreign key
* - {@code DatabaseMetaData.importedKeyCascade} - change the imported key to
* match the updated primary key
* - {@code DatabaseMetaData.importedKeySetNull} - set the imported key to
* {@code null}
* - {@code DatabaseMetaData.importedKeySetDefault} - set the imported key
* to its default value
* - {@code DatabaseMetaData.importedKeyRestrict} - same as {@code
* importedKeyNoAction}
*
*
* - {@code DELETE_RULE} - short - a value giving the rule for how to treat the foreign key when the corresponding primary
* key is deleted:
*
* - {@code DatabaseMetaData.importedKeyNoAction} - don't allow the
* primary key to be deleted if it is imported as a foreign key
* - {@code DatabaseMetaData.importedKeyCascade} - delete those rows that
* import a deleted key
* - {@code DatabaseMetaData.importedKeySetNull} - set the imported key to
* {@code null}
* - {@code DatabaseMetaData.importedKeySetDefault} - set the imported key
* to its default value
* - {@code DatabaseMetaData.importedKeyRestrict} - same as
* importedKeyNoAction
*
*
* - {@code FK_NAME} - String - the foreign key name (possibly {@code null})
* - {@code PK_NAME} - String - the primary key name (possibly {@code null})
* - {@code DEFERRABILITY} - short - whether foreign key constraints can be
* deferred until commit (see the SQL92 specification for definitions):
*
* - {@code DatabaseMetaData.importedKeyInitiallyDeferred}
* - {@code DatabaseMetaData.importedKeyInitiallyImmediate}
* - {@code DatabaseMetaData.importedKeyNotDeferrable}
*
*
*
*
* @param primaryCatalog
* a catalog name for the primary key table. {@code null} is used to imply no narrowing of
* the search by catalog name. Otherwise, the name must match a
* catalog name held in the database, with "" used to retrieve
* those without a catalog name.
* @param primarySchema
* a schema name for the primary key table. {@code null} is used to imply no narrowing of
* the search by schema name. Otherwise, the name must match a
* schema name in the database, with "" used to retrieve those
* without a schema name.
* @param primaryTable
* the name of the table which exports the key. It must match the
* name of the table in the database.
* @param foreignCatalog
* a catalog name for the foreign key table. {@code null} is used to imply no narrowing of
* the search by catalog name. Otherwise, the name must match a
* catalog name held in the database, with "" used to retrieve
* those without a catalog name.
* @param foreignSchema
* a schema name for the foreign key table. {@code null} is used to imply no narrowing of
* the search by schema name. Otherwise, the name must match a
* schema name in the database, with "" used to retrieve those
* without a schema name.
* @param foreignTable
* the name of the table importing the key. It must match the
* name of the table in the database.
* @return a {@code ResultSet} containing rows with the descriptions of the
* foreign keys laid out according to the format defined above.
* @throws SQLException
* if there is a database error.
*/
public ResultSet getCrossReference(String primaryCatalog,
String primarySchema, String primaryTable, String foreignCatalog,
String foreignSchema, String foreignTable) throws SQLException;
/**
* Returns the major version number of the database software.
*
* @return the major version number of the database software.
* @throws SQLException
* a database error occurred.
*/
public int getDatabaseMajorVersion() throws SQLException;
/**
* Returns the minor version number of the database software.
*
* @return the minor version number of the database software.
* @throws SQLException
* a database error occurred.
*/
public int getDatabaseMinorVersion() throws SQLException;
/**
* Returns the name of the database software.
*
* @return a {@code String} with the name of the database software.
* @throws SQLException
* a database error occurred.
*/
public String getDatabaseProductName() throws SQLException;
/**
* Returns the version number of this database software.
*
* @return a {@code String} with the version number of the database
* software.
* @throws SQLException
* a database error occurred.
*/
public String getDatabaseProductVersion() throws SQLException;
/**
* Returns the default transaction isolation level for this database.
*
* @return the default transaction isolation level. One of the following values:
*
* - {@code TRANSACTION_NONE}
* - {@code TRANSACTION_READ_COMMITTED}
* - {@code TRANSACTION_READ_UNCOMMITTED}
* - {@code TRANSACTION_REPEATABLE_READ}
* - {@code TRANSACTION_SERIALIZABLE}
*
* @throws SQLException
* a database error occurred.
*/
public int getDefaultTransactionIsolation() throws SQLException;
/**
* Returns the JDBC driver's major version number.
*
* @return the driver's major version number.
*/
public int getDriverMajorVersion();
/**
* Returns the JDBC driver's minor version number.
*
* @return the driver's minor version number.
*/
public int getDriverMinorVersion();
/**
* Returns the name of this JDBC driver.
*
* @return a {@code String} containing the name of the JDBC driver
* @throws SQLException
* a database error occurred.
*/
public String getDriverName() throws SQLException;
/**
* Returns the version number of this JDBC driver.
*
* @return a {@code String} containing the complete version number of the
* JDBC driver.
* @throws SQLException
* a database error occurred.
*/
public String getDriverVersion() throws SQLException;
/**
* Returns a list of the foreign key columns that reference the primary key
* columns of a specified table (the foreign keys exported by a table).
*
* The list is returned as a {@code ResultSet} with a row for each of the
* foreign key columns, ordered by {@code FKTABLE_CAT}, {@code
* FKTABLE_SCHEM}, {@code FKTABLE_NAME}, and {@code KEY_SEQ}, with the
* format for each row being:
*
* - {@code PKTABLE_CAT} - String - from the primary key table : the catalog (possibly
* {@code null})
* - {@code PKTABLE_SCHEM} - String - from the primary key table : the schema (possibly
* {@code null})
* - {@code PKTABLE_NAME} - String - from the primary key table : the name
* - {@code PKCOLUMN_NAME} - String - from the primary key column : the name
* - {@code FKTABLE_CAT} - String - from the foreign key table : the catalog name being
* exported (possibly {@code null})
* - {@code FKTABLE_SCHEM} - String - from the foreign key table : the schema name
* being exported (possibly {@code null})
* - {@code FKTABLE_NAME} - String - from the foreign key table : the name being
* exported
* - {@code FKCOLUMN_NAME} - String - from the foreign key column : the name being
* exported
* - {@code KEY_SEQ} - short - the sequence number (in the foreign key)
* - {@code UPDATE_RULE} - short - a value giving the rule for how to treat the foreign key when the corresponding primary
* key is updated:
*
* - {@code DatabaseMetaData.importedKeyNoAction} - don't allow the
* primary key to be updated if it is imported as a foreign key
* - {@code DatabaseMetaData.importedKeyCascade} - change the imported key to
* match the primary key update
* - {@code DatabaseMetaData.importedKeySetNull} - set the imported key to
* {@code null}
* - {@code DatabaseMetaData.importedKeySetDefault} - set the imported key
* to its default value
* - {@code DatabaseMetaData.importedKeyRestrict} - same as
* importedKeyNoAction
*
*
* - {@code DELETE_RULE} - short - how to treat the foreign key when the corresponding primary
* key is deleted:
*
* - {@code DatabaseMetaData.importedKeyNoAction} - don't allow the
* primary key to be deleted if it is imported as a foreign key
* - {@code DatabaseMetaData.importedKeyCascade} - the deletion should
* also delete rows that import a deleted key
* - {@code DatabaseMetaData.importedKeySetNull} - the deletion sets the
* imported key to {@code null}
* - {@code DatabaseMetaData.importedKeySetDefault} - the deletion sets the
* imported key to its default value
* - {@code DatabaseMetaData.importedKeyRestrict} - same as
* importedKeyNoAction
*
*
* - {@code FK_NAME} - String - the foreign key name (possibly {@code null})
* - {@code PK_NAME} - String - the primary key name (possibly {@code null})
* - {@code DEFERRABILITY} - short - defines whether the foreign key
* constraints can be deferred until commit (see the SQL92 specification for
* definitions):
*
* - {@code DatabaseMetaData.importedKeyInitiallyDeferred}
* - {@code DatabaseMetaData.importedKeyInitiallyImmediate}
* - {@code DatabaseMetaData.importedKeyNotDeferrable}
*
*
*
*
* @param catalog
* a catalog name. {@code null} is used to imply no narrowing of
* the search by catalog name. Otherwise, the name must match a
* catalog name held in the database, with "" used to retrieve
* those without a catalog name.
* @param schema
* a schema name. {@code null} is used to imply no narrowing of
* the search by schema name. Otherwise, the name must match a
* schema name in the database, with "" used to retrieve those
* without a schema name.
* @param table
* a table name, which must match the name of a table in the
* database
* @return a {@code ResultSet} containing a row for each of the foreign key
* columns, as defined above
* @throws SQLException
* a database error occurred
*/
public ResultSet getExportedKeys(String catalog, String schema, String table)
throws SQLException;
/**
* Returns a string of characters that may be used in unquoted identifier
* names. The characters {@code a-z}, {@code A-Z}, {@code 0-9} and {@code _}
* are always permitted.
*
* @return a String containing all the additional permitted characters.
* @throws SQLException
* a database error occurred.
*/
public String getExtraNameCharacters() throws SQLException;
/**
* Returns the string used to quote SQL identifiers. Returns " " (space) if
* identifier quoting not supported.
*
* @return the String used to quote SQL identifiers.
* @throws SQLException
* a database error occurred.
*/
public String getIdentifierQuoteString() throws SQLException;
/**
* Returns a list columns in a table that are both primary keys and
* referenced by the table's foreign key columns (that is, the primary keys
* imported by a table).
*
* The list returned is a {@code ResultSet} with a row entry for each
* primary key column, ordered by {@code PKTABLE_CAT}, {@code PKTABLE_SCHEM},
* {@code PKTABLE_NAME}, and {@code KEY_SEQ}, with the following format:
*
* - {@code PKTABLE_CAT} - String - primary key catalog name being
* imported (possibly {@code null})
* - {@code PKTABLE_SCHEM} - String - primary key schema name being
* imported (possibly {@code null})
* - {@code PKTABLE_NAME} - String - primary key table name being imported
*
* - {@code PKCOLUMN_NAME} - String - primary key column name being
* imported
* - {@code FKTABLE_CAT} - String - foreign key table catalog name
* (possibly {@code null})
* - {@code FKTABLE_SCHEM} - String - foreign key table schema name
* (possibly {@code null})
* - {@code FKTABLE_NAME} - String - foreign key table name
* - {@code FKCOLUMN_NAME} - String - foreign key column name
* - {@code KEY_SEQ} - short - sequence number (in the foreign key)
* - {@code UPDATE_RULE} - short - how to treat the foreign key when the corresponding primary
* key is updated:
*
* - {@code DatabaseMetaData.importedKeyNoAction} - don't allow any update of
* the primary key if it is imported as a foreign key
* - {@code DatabaseMetaData.importedKeyCascade} - change imported key to
* match the primary key update
* - {@code DatabaseMetaData.importedKeySetNull} - set the imported key to
* {@code null}
* - {@code DatabaseMetaData.importedKeySetDefault} - set the imported key
* to its default value
* - {@code DatabaseMetaData.importedKeyRestrict} - same as
* importedKeyNoAction
*
*
* - {@code DELETE_RULE} - short - how to treat the foreign key when the corresponding primary
* key is deleted:
*
* - {@code DatabaseMetaData.importedKeyNoAction} - don't allow the primary key to be deleted
* if it is imported as a foreign key
* - {@code DatabaseMetaData.importedKeyCascade} - delete those rows that
* import a deleted key
* - {@code DatabaseMetaData.importedKeySetNull} - set the imported key to
* {@code null}
* - {@code DatabaseMetaData.importedKeySetDefault} - set the imported key
* to its default value
* - {@code DatabaseMetaData.importedKeyRestrict} - same as {@code
* importedKeyNoAction}
*
*
* - {@code FK_NAME} - String - foreign key name (possibly {@code null})
* - {@code PK_NAME} - String - primary key name (possibly {@code null})
* - {@code DEFERRABILITY} - short - defines whether foreign key
* constraints can be deferred until commit (see SQL92 specification for
* definitions):
*
* - {@code DatabaseMetaData.importedKeyInitiallyDeferred}
* - {@code DatabaseMetaData.importedKeyInitiallyImmediate}
* - {@code DatabaseMetaData.importedKeyNotDeferrable}
*
*
*
*
* @param catalog
* a catalog name. {@code null} is used to imply no narrowing of
* the search by catalog name. Otherwise, the name must match a
* catalog name held in the database, with "" used to retrieve
* those without a catalog name.
* @param schema
* a schema name. {@code null} is used to imply no narrowing of
* the search by schema name. Otherwise, the name must match a
* schema name in the database, with "" used to retrieve those
* without a schema name.
* @param table
* a table name, which must match the name of a table in the
* database.
* @return a {@code ResultSet} containing the list of primary key columns as
* rows in the format defined above.
* @throws SQLException
* a database error occurred.
*/
public ResultSet getImportedKeys(String catalog, String schema, String table)
throws SQLException;
/**
* Returns a list of indices and statistics for a specified table.
*
* The list is returned as a {@code ResultSet}, with one row for each index
* or statistic. The list is ordered by {@code NON_UNIQUE}, {@code TYPE},
* {@code INDEX_NAME}, and {@code ORDINAL_POSITION}. Each row has the
* following format:
*
* - {@code TABLE_CAT} - String - table catalog name (possibly {@code
* null})
* - {@code TABLE_SCHEM} - String - table schema name (possibly {@code
* null})
* - {@code TABLE_NAME} - String - The table name
* - {@code NON_UNIQUE} - boolean - {@code true} when index values can be
* non-unique. Must be {@code false} when the TYPE is tableIndexStatistic
* - {@code INDEX_QUALIFIER} - String : index catalog name. {@code null}
* when the TYPE is 'tableIndexStatistic'
* - {@code INDEX_NAME} - String : index name. {@code null} when TYPE is
* 'tableIndexStatistic'
* - {@code TYPE} - short - the index type. One of:
*
* - {@code DatabaseMetaData.tableIndexStatistic} - table statistics
* returned with Index descriptions
* - {@code DatabaseMetaData.tableIndexClustered} - a clustered Index
* - {@code DatabaseMetaData.tableIndexHashed} - a hashed Index
* - {@code DatabaseMetaData.tableIndexOther} - other style of Index
*
*
* - {@code ORDINAL_POSITION} - short - column sequence within Index. 0
* when TYPE is tableIndexStatistic
* - {@code COLUMN_NAME} - String - the column name. {@code null} when
* TYPE is tableIndexStatistic
* - {@code ASC_OR_DESC} - String - column sort sequence. {@code null} if
* sequencing not supported or TYPE is tableIndexStatistic; otherwise "A"
* means sort ascending and "D" means sort descending.
* - {@code CARDINALITY} - int - Number of unique values in the Index. If
* TYPE is tableIndexStatistic, this is number of rows in the table.
* - {@code PAGES} - int - Number of pages for current Index. If TYPE is
* tableIndexStatistic, this is number of pages used for the table.
* - {@code FILTER_CONDITION} - String - Filter condition. (possibly null)
*
*
*
* @param catalog
* a catalog name. {@code null} is used to imply no narrowing of
* the search by catalog name. Otherwise, the name must match a
* catalog name held in the database, with "" used to retrieve
* those without a catalog name.
* @param schema
* a schema name. {@code null} is used to imply no narrowing of
* the search by schema name. Otherwise, the name must match a
* schema name in the database, with "" used to retrieve those
* without a schema name.
* @param table
* a table name, which must match the name of a table in the
* database.
* @param unique
* {@code true} means only return indices for unique values,
* {@code false} implies that they can be returned even if not
* unique.
* @param approximate
* {@code true} implies that the list can contain approximate or
* "out of data" values, {@code false} implies that all values
* must be precisely accurate
* @return a {@code ResultSet} containing the list of indices and statistics
* for the table, in the format defined above.
* @throws SQLException
* a database error occurred.
*/
public ResultSet getIndexInfo(String catalog, String schema, String table,
boolean unique, boolean approximate) throws SQLException;
/**
* Returns this driver's major JDBC version number.
*
* @return the major JDBC version number.
* @throws SQLException
* a database error occurred.
*/
public int getJDBCMajorVersion() throws SQLException;
/**
* Returns the minor JDBC version number for this driver.
*
* @return the Minor JDBC Version Number.
* @throws SQLException
* a database error occurred.
*/
public int getJDBCMinorVersion() throws SQLException;
/**
* Get the maximum number of hex characters in an in-line binary literal for
* this database.
*
* @return the maximum number of hex characters in an in-line binary
* literal. If the number is unlimited then the result is zero.
* @throws SQLException
* a database error occurred.
*/
public int getMaxBinaryLiteralLength() throws SQLException;
/**
* Returns the maximum size of a catalog name in this database.
*
* @return the maximum size in characters for a catalog name. If the limit
* is unknown, or the value is unlimited, then the result is zero.
* @throws SQLException
* a database error occurred.
*/
public int getMaxCatalogNameLength() throws SQLException;
/**
* Returns the maximum size for a character literal in this database.
*
* @return the maximum size in characters for a character literal. If the
* limit is unknown, or the value is unlimited, then the result is
* zero.
* @throws SQLException
* a database error occurred.
*/
public int getMaxCharLiteralLength() throws SQLException;
/**
* Returns the maximum size for a Column name for this database.
*
* @return the maximum number of characters for a Column name. If the limit
* is unknown, or the value is unlimited, then the result is zero.
* @throws SQLException
* a database error occurred.
*/
public int getMaxColumnNameLength() throws SQLException;
/**
* Get the maximum number of columns in a {@code GROUP BY} clause for this
* database.
*
* @return the maximum number of columns in a {@code GROUP BY} clause. If
* the limit is unknown, or the value is unlimited, then the result
* is zero.
* @throws SQLException
* a database error occurred.
*/
public int getMaxColumnsInGroupBy() throws SQLException;
/**
* Returns the maximum number of columns in an Index for this database.
*
* @return the maximum number of columns in an Index. If the limit is
* unknown, or the value is unlimited, then the result is zero.
* @throws SQLException
* a database error occurred.
*/
public int getMaxColumnsInIndex() throws SQLException;
/**
* Returns the maximum number of columns in an {@code ORDER BY} clause for
* this database.
*
* @return the maximum number of columns in an {@code ORDER BY} clause. If
* the limit is unknown, or the value is unlimited, then the result
* is zero.
* @throws SQLException
* a database error occurred.
*/
public int getMaxColumnsInOrderBy() throws SQLException;
/**
* Returns the maximum number of columns in a {@code SELECT} list for this
* database.
*
* @return the maximum number of columns in a {@code SELECT} list. If the
* limit is unknown, or the value is unlimited, then the result is
* zero.
* @throws SQLException
* a database error occurred.
*/
public int getMaxColumnsInSelect() throws SQLException;
/**
* Returns the maximum number of columns in a table for this database.
*
* @return the maximum number of columns in a table. If the limit is
* unknown, or the value is unlimited, then the result is zero.
* @throws SQLException
* a database error occurred.
*/
public int getMaxColumnsInTable() throws SQLException;
/**
* Returns the database's maximum number of concurrent connections.
*
* @return the maximum number of connections. If the limit is unknown, or
* the value is unlimited, then the result is zero.
* @throws SQLException
* a database error occurred.
*/
public int getMaxConnections() throws SQLException;
/**
* Returns the maximum length of a cursor name for this database.
*
* @return the maximum number of characters in a cursor name. If the limit
* is unknown, or the value is unlimited, then the result is zero.
* @throws SQLException
* a database error occurred.
*/
public int getMaxCursorNameLength() throws SQLException;
/**
* Returns the maximum length in bytes for an Index for this database. This
* covers all the parts of a composite index.
*
* @return the maximum length in bytes for an Index. If the limit is
* unknown, or the value is unlimited, then the result is zero.
* @throws SQLException
* a database error occurred.
*/
public int getMaxIndexLength() throws SQLException;
/**
* Returns the maximum number of characters for a procedure name in this
* database.
*
* @return the maximum number of character for a procedure name. If the
* limit is unknown, or the value is unlimited, then the result is
* zero.
* @throws SQLException
* a database error occurred.
*/
public int getMaxProcedureNameLength() throws SQLException;
/**
* Returns the maximum number of bytes within a single row for this
* database.
*
* @return the maximum number of bytes for a single row. If the limit is
* unknown, or the value is unlimited, then the result is zero.
* @throws SQLException
* a database error occurred.
*/
public int getMaxRowSize() throws SQLException;
/**
* Returns the maximum number of characters in a schema name for this
* database.
*
* @return the maximum number of characters in a schema name. If the limit
* is unknown, or the value is unlimited, then the result is zero.
* @throws SQLException
* a database error occurred.
*/
public int getMaxSchemaNameLength() throws SQLException;
/**
* Returns the maximum number of characters in an SQL statement for this
* database.
*
* @return the maximum number of characters in an SQL statement. If the
* limit is unknown, or the value is unlimited, then the result is
* zero.
* @throws SQLException
* a database error occurred.
*/
public int getMaxStatementLength() throws SQLException;
/**
* Get the maximum number of simultaneously open active statements for this
* database.
*
* @return the maximum number of open active statements. If the limit is
* unknown, or the value is unlimited, then the result is zero.
* @throws SQLException
* a database error occurred.
*/
public int getMaxStatements() throws SQLException;
/**
* Returns the maximum size for a table name in the database.
*
* @return the maximum size in characters for a table name. If the limit is
* unknown, or the value is unlimited, then the result is zero.
* @throws SQLException
* a database error occurred.
*/
public int getMaxTableNameLength() throws SQLException;
/**
* Returns the maximum number of tables permitted in a {@code SELECT}
* statement for the database.
*
* @return the maximum number of tables permitted in a {@code SELECT}
* statement. If the limit is unknown, or the value is unlimited,
* then the result is zero.
* @throws SQLException
* a database error occurred.
*/
public int getMaxTablesInSelect() throws SQLException;
/**
* Returns the maximum number of characters in a user name for the database.
*
* @return the maximum number of characters in a user name. If the limit is
* unknown, or the value is unlimited, then the result is zero.
* @throws SQLException
* a database error occurred.
*/
public int getMaxUserNameLength() throws SQLException;
/**
* Returns a list of the math functions available with this database. These
* are used in the JDBC function escape clause and are the Open Group CLI
* math function names.
*
* @return a String which contains the list of math functions as a comma
* separated list.
* @throws SQLException
* a database error occurred.
*/
public String getNumericFunctions() throws SQLException;
/**
* Returns a list of the primary key columns of a specified table.
*
* The list is returned as a {@code ResultSet} with one row for each primary
* key column, ordered by {@code COLUMN_NAME}, with each row having the
* structure as follows:
*
* - {@code TABLE_CAT} - String - table catalog name (possibly null)
* - {@code TABLE_SCHEM} - String - table schema name (possibly null)
* - {@code TABLE_NAME} - String - The table name
* - {@code COLUMN_NAME} - String - The column name
* - {@code KEY_SEQ} - short - the sequence number for this column in the
* primary key
* - {@code PK_NAME} - String - the primary key name (possibly null)
*
*
* @param catalog
* a catalog name. {@code null} is used to imply no narrowing of
* the search by catalog name. Otherwise, the name must match a
* catalog name held in the database, with the empty string used
* to retrieve those without a catalog name.
* @param schema
* a schema name. {@code null} is used to imply no narrowing of
* the search by schema name. Otherwise, the name must match a
* schema name in the database, with the empty string used to
* retrieve those without a schema name.
* @param table
* the name of a table, which must match the name of a table in
* the database.
* @return a {@code ResultSet} containing the list of keys in the format
* defined above.
* @throws SQLException
* a database error occurred.
*/
public ResultSet getPrimaryKeys(String catalog, String schema, String table)
throws SQLException;
/**
* Returns a list of parameter and result columns for the stored procedures
* belonging to a specified catalog.
*
* The list is returned as a {@code ResultSet} with one row for each
* parameter or result column. The data is ordered by {@code
* PROCEDURE_SCHEM} and {@code PROCEDURE_NAME}, while for each procedure,
* the return value (if any) is first, followed by the parameters in the
* order they appear in the stored procedure call, followed by {@code
* ResultSet} columns in column number order. Each row has the following
* structure:
*
* - {@code PROCEDURE_CAT} - String - the procedure catalog name
* - {@code PROCEDURE_SCHEM} - String - the procedure schema name
* (possibly null)
* - {@code PROCEDURE_NAME} - String - the procedure name
* - {@code COLUMN_NAME} - String - the name of the column
* - {@code COLUMN_TYPE} - short - the kind of column or parameter, as
* follows:
*
* - {@code DatabaseMetaData.procedureColumnUnknown} - type unknown
* - {@code DatabaseMetaData.procedureColumnIn} - an {@code IN} parameter
* - {@code DatabaseMetaData.procedureColumnInOut} - an {@code INOUT}
* parameter
* - {@code DatabaseMetaData.procedureColumnOut} - an {@code OUT}
* parameter
* - {@code DatabaseMetaData.procedureColumnReturn} - a return value
* - {@code DatabaseMetaData.procedureReturnsResult} - a result column in
* a result set
*
*
* - {@code DATA_TYPE} - int - the SQL type of the data, as in {@code
* java.sql.Types}
* - {@code TYPE_NAME} - String - the SQL type name, for a UDT it is fully
* qualified
* - {@code PRECISION} - int - the precision
* - {@code LENGTH} - int - the length of the data in bytes
* - {@code SCALE} - short - the scale for numeric types
* - {@code RADIX} - short - the Radix for numeric data (typically 2 or
* 10)
* - {@code NULLABLE} - short - can the data contain {@code null}:
*
* - {@code DatabaseMetaData.procedureNoNulls} - {@code NULL}s not
* permitted
* - {@code DatabaseMetaData.procedureNullable} - {@code NULL}s are
* permitted
* - {@code DatabaseMetaData.procedureNullableUnknown} - {@code NULL}
* status unknown
*
*
* - {@code REMARKS} - String - an explanatory comment about the data item
*
*
*
* @param catalog
* a catalog name. {@code null} is used to imply no narrowing of
* the search by catalog name. Otherwise, the name must match a
* catalog name held in the database, with "" used to retrieve
* those without a catalog name.
* @param schemaPattern
* a schema name pattern. {@code null} is used to imply no
* narrowing of the search by schema name. Otherwise, the name
* must match a schema name in the database, with "" used to
* retrieve those without a schema name.
* @param procedureNamePattern
* a pattern that must match the name of the procedure stored in
* the database.
* @param columnNamePattern
* a column name pattern. The name must match the column name
* stored in the database.
* @return a {@code ResultSet} with the list of parameter and result columns
* in the format defined above.
* @throws SQLException
* a database error occurred.
*/
public ResultSet getProcedureColumns(String catalog, String schemaPattern,
String procedureNamePattern, String columnNamePattern)
throws SQLException;
/**
* Returns a list of the stored procedures available in a specified catalog.
*
* The list is returned as a {@code ResultSet} with one row for each stored
* procedure, ordered by PROCEDURE_SCHEM and PROCEDURE_NAME, with the data
* in each row as follows:
*
* - {@code PROCEDURE_CAT} - String : the procedure catalog name
* - {@code PROCEDURE_SCHEM} - String : the procedure schema name
* (possibly {@code null})
* - {@code PROCEDURE_NAME} - String : the procedure name
* - {@code Reserved}
* - {@code Reserved}
* - {@code Reserved}
* - {@code REMARKS} - String - information about the procedure
* - {@code PROCEDURE_TYPE} - short : one of:
*
* - {@code DatabaseMetaData.procedureResultUnknown} - procedure may
* return a result
* - {@code DatabaseMetaData.procedureNoResult} - procedure does not
* return a result
* - {@code DatabaseMetaData.procedureReturnsResult} - procedure
* definitely returns a result
*
*
*
*
* @param catalog
* a catalog name. {@code null} is used to imply no narrowing of
* the search by catalog name. Otherwise, the name must match a
* catalog name held in the database, with "" used to retrieve
* those without a catalog name.
* @param schemaPattern
* a schema name pattern. {@code null} is used to imply no
* narrowing of the search by schema name. Otherwise, the name
* must match a schema name in the database, with "" used to
* retrieve those without a schema name.
* @param procedureNamePattern
* a procedure name pattern, which must match the procedure name
* stored in the database.
* @return a {@code ResultSet} where each row is a description of a stored
* procedure in the format defined above.
* @throws SQLException
* a database error occurred.
*/
public ResultSet getProcedures(String catalog, String schemaPattern,
String procedureNamePattern) throws SQLException;
/**
* Returns the database vendor's preferred name for "procedure".
*
* @return a String with the vendor's preferred name for "procedure".
* @throws SQLException
* a database error occurred.
*/
public String getProcedureTerm() throws SQLException;
/**
* Returns the result set's default holdability.
*
* @return one of {@code ResultSet.HOLD_CURSORS_OVER_COMMIT} or {@code
* ResultSet.CLOSE_CURSORS_AT_COMMIT}.
* @throws SQLException
* a database error occurred.
*/
public int getResultSetHoldability() throws SQLException;
/**
* Returns a list of the schema names in the database. The list is returned
* as a {@code ResultSet}, ordered by the schema name, with one row per
* schema in the following format:
*
* - {@code TABLE_SCHEM} - String - the schema name
- {@code
* TABLE_CATALOG} - String - the catalog name (possibly {@code null})
*
*
* @return a {@code ResultSet} with one row for each schema in the format
* defined above.
* @throws SQLException
* a database error occurred.
*/
public ResultSet getSchemas() throws SQLException;
/**
* Returns the database vendor's preferred term for "schema".
*
* @return a String which is the vendor's preferred term for schema.
* @throws SQLException
* a database error occurred.
*/
public String getSchemaTerm() throws SQLException;
/**
* Returns the string that is used to escape wildcard characters. This
* string is used to escape the {@code '_'} and {@code '%'} wildcard
* characters in catalog search pattern strings. {@code '_'} is used to represent any single
* character while {@code '%'} is used for a sequence of zero or more
* characters.
*
* @return a String used to escape the wildcard characters.
* @throws SQLException
* a database error occurred.
*/
public String getSearchStringEscape() throws SQLException;
/**
* Returns a list of all the SQL keywords that are NOT also SQL92 keywords
* for the database.
*
* @return a String containing the list of SQL keywords in a comma separated
* format.
* @throws SQLException
* a database error occurred.
*/
public String getSQLKeywords() throws SQLException;
/**
* States the type of {@code SQLState} value returned by {@code
* SQLException.getSQLState}. This can either be the X/Open (now known as
* Open Group) SQL CLI form or the SQL99 form.
*
* @return an integer, which is either {@code
* DatabaseMetaData.sqlStateSQL99} or {@code
* DatabaseMetaData.sqlStateXOpen}.
* @throws SQLException
* a database error occurred.
*/
public int getSQLStateType() throws SQLException;
/**
* Returns a list of string functions available with the database. These
* functions are used in JDBC function escape clause and follow the Open
* Group CLI string function names definition.
*
* @return a String containing the list of string functions in comma
* separated format.
* @throws SQLException
* a database error occurred.
*/
public String getStringFunctions() throws SQLException;
/**
* Returns a listing of the hierarchies of tables in a specified schema in
* the database.
*
* The listing only contains entries for tables that have a super table.
* Super tables and corresponding subtables must be defined in the same catalog and schema. The
* list is returned as a {@code ResultSet}, with one row for each table that
* has a super table, in the following format:
*
* - {@code TABLE_CAT} - String - table catalog name (possibly {@code
* null})
* - {@code TABLE_SCHEM} - String - Table schema name (possibly {@code
* null})
* - {@code TABLE_NAME} - String - The table name
* - SUPER{@code TABLE_NAME} - String - The super table name
*
*
* @param catalog
* a catalog name. {@code null} is used to imply no narrowing of
* the search by catalog name. Otherwise, the name must match a
* catalog name held in the database, with "" used to retrieve
* those without a catalog name.
* @param schemaPattern
* a schema name pattern. {@code null} is used to imply no
* narrowing of the search by schema name. Otherwise, the name
* must match a schema name in the database, with "" used to
* retrieve those without a schema name.
* @param tableNamePattern
* a table name, which should match the table name as stored in
* the database. it may be a fully qualified name. If it is fully
* qualified the catalog name and schema name parameters are
* ignored.
* @return a {@code ResultSet} with one row for each table which has a super
* table, in the format defined above. An empty {@code ResultSet} is
* returned if the database does not support table hierarchies.
* @throws SQLException
* a database error occurred.
*/
public ResultSet getSuperTables(String catalog, String schemaPattern,
String tableNamePattern) throws SQLException;
/**
* Returns the User Defined Type (UDT) hierarchies for a given schema. Only
* the immediate parent/child relationship is described. If a UDT does not
* have a direct supertype, it is not listed.
*
* The listing is returned as a {@code ResultSet} where there is one row for
* a specific UDT which describes its supertype, with the data organized in
* columns as follows:
*
* - {@code TYPE_CAT} - String - the UDT catalog name (possibly {@code
* null})
* - {@code TYPE_SCHEM} - String - the UDT schema name (possibly {@code
* null})
* - {@code TYPE_NAME} - String - the UDT type name
* - SUPER{@code TYPE_CAT} - String - direct supertype's catalog name
* (possibly {@code null})
* - SUPER{@code TYPE_SCHEM} - String - direct supertype's schema name
* (possibly {@code null})
* - SUPER{@code TYPE_NAME} - String - direct supertype's name
*
*
* @param catalog
* the catalog name. "" means get the UDTs without a catalog.
* {@code null} means don't use the catalog name to restrict the
* search.
* @param schemaPattern
* the Schema pattern name. "" means get the UDT's without a
* schema.
* @param typeNamePattern
* the UDT name pattern. This may be a fully qualified name. When
* a fully qualified name is specified, the catalog name and
* schema name parameters are ignored.
* @return a {@code ResultSet} in which each row gives information about a
* particular UDT in the format defined above. An empty ResultSet is
* returned for a database that does not support type hierarchies.
* @throws SQLException
* a database error occurred.
*/
public ResultSet getSuperTypes(String catalog, String schemaPattern,
String typeNamePattern) throws SQLException;
/**
* Returns a list of system functions available with the database. These are
* names used in the JDBC function escape clause and are Open Group CLI
* function names.
*
* @return a String containing the list of system functions in a comma
* separated format.
* @throws SQLException
* a database error occurred.
*/
public String getSystemFunctions() throws SQLException;
/**
* Returns a description of access rights for each table present in a
* catalog. Table privileges can apply to one or more columns in the table -
* but are not guaranteed to apply to all columns.
*
* The privileges are returned as a {@code ResultSet}, with one row for each
* privilege, ordered by {@code TABLE_SCHEM}, {@code TABLE_NAME}, {@code
* PRIVILEGE}, and each row has data as defined in the following column
* definitions:
*
* - {@code TABLE_CAT} - String - table catalog name (possibly {@code
* null})
* - {@code TABLE_SCHEM} - String - Table schema name (possibly {@code
* null})
* - {@code TABLE_NAME} - String - The table name
* - GRANTOR - String - who granted the access
* - GRANTEE - String - who received the access grant
* - PRIVILEGE - String - the type of access granted - one of SELECT,
* INSERT, UPDATE, REFERENCES,...
* - IS_GRANTABLE - String - {@code "YES"} implies the grantee can grant
* access to others, {@code "NO"} implies guarantee cannot grant access to
* others, {@code null} means this status is unknown
*
*
* @param catalog
* a catalog name. {@code null} is used to imply no narrowing of
* the search by catalog name. Otherwise, the name must match a
* catalog name held in the database, with "" used to retrieve
* those without a catalog name.
* @param schemaPattern
* a schema name pattern. {@code null} is used to imply no
* narrowing of the search by schema name. Otherwise, the name
* must match a schema name in the database, with "" used to
* retrieve those without a schema name.
* @param tableNamePattern
* a Table Name, which should match the table name as stored in
* the database.
* @return a {@code ResultSet} containing a list with one row for each table
* in the format defined above.
* @throws SQLException
* a database error occurred.
*/
public ResultSet getTablePrivileges(String catalog, String schemaPattern,
String tableNamePattern) throws SQLException;
/**
* Returns a description of the tables in a specified catalog.
*
* The descriptions are returned as rows in a {@code ResultSet}, one row for
* each Table. The ResultSet is ordered by {@code TABLE_TYPE}, {@code
* TABLE_SCHEM} and {@code TABLE_NAME}. Each row in the ResultSet consists
* of a series of columns as follows:
*
* - {@code TABLE_CAT} - String - table catalog name (possibly {@code
* null})
* - {@code TABLE_SCHEM} - String - Table schema name (possibly {@code
* null})
* - {@code TABLE_NAME} - String - The table name
* - {@code TABLE_TYPE} - String - Typical names include "TABLE", "VIEW",
* "SYSTEM TABLE", "ALIAS", "SYNONYM", "GLOBAL TEMPORARY"
* - {@code REMARKS} - String - A comment describing the table
* - {@code TYPE_CAT} - String - the 'Types' catalog(possibly {@code null}
* )
* - {@code TYPE_SCHEM} - String - the 'Types' schema(possibly {@code
* null})
* - {@code TYPE_NAME} - String - the 'Types' name (possibly {@code null})
*
* - {@code SELF_REFERENCING_COL_NAME} - String - the name of a designated
* identifier column in a typed table (possibly {@code null})
* - REF_GENERATION - String - one of the following values : "SYSTEM" |
* "USER" | "DERIVED" - specifies how values in the {@code
* SELF_REFERENCING_COL_NAME} are created (possibly {@code null})
*
*
* @param catalog
* a catalog name. {@code null} is used to imply no narrowing of
* the search by catalog name. Otherwise, the name must match a
* catalog name held in the database, with "" used to retrieve
* those without a catalog name.
* @param schemaPattern
* a schema name pattern. {@code null} is used to imply no
* narrowing of the search by schema name. Otherwise, the name
* must match a schema name in the database, with "" used to
* retrieve those without a schema name.
* @param tableNamePattern
* a table name, which should match the table name as stored in
* the database.
* @param types
* a list of table types to include in the list. {@code null}
* implies list all types.
* @return a {@code ResultSet} with one row per table in the format defined
* above.
* @throws SQLException
* a database error occurred.
*/
public ResultSet getTables(String catalog, String schemaPattern,
String tableNamePattern, String[] types) throws SQLException;
/**
* Returns a list of table types supported by the database.
*
* The list is returned as a {@code ResultSet} with one row per table type,
* ordered by the table type. The information in the {@code ResultSet} is
* structured into a single column per row, as follows:
*
* - {@code TABLE_TYPE} - String - the table type. Typical names include
* {@code "TABLE"}, {@code "VIEW"}, "{@code SYSTEM TABLE"}, {@code "ALIAS"},
* {@code "SYNONYM"}, {@code "GLOBAL TEMPORARY"}
*
*
* @return a {@code ResultSet} with one row per table type in the format
* defined above.
* @throws SQLException
* a database error occurred.
*/
public ResultSet getTableTypes() throws SQLException;
/**
* Returns a list of time and date functions available for the database.
*
* @return a string containing a comma separated list of the time and date
* functions.
* @throws SQLException
* a database error occurred.
*/
public String getTimeDateFunctions() throws SQLException;
/**
* Get a list of the standard SQL types supported by this database. The list
* is returned as a {@code ResultSet}, with one row for each type, ordered
* by the {@code DATA_TYPE} value, where the data in each row is structured
* into the following columns:
*
* - {@code TYPE_NAME} - String : the type name
* - {@code DATA_TYPE} - int : the SQL data type value as defined in
* {@code java.sql.Types}
* - {@code PRECISION} - int - the maximum precision of the type
* - {@code LITERAL_PREFIX} - String : the prefix to be used when quoting
* a literal value (possibly {@code null})
* - {@code LITERAL_SUFFIX} - String : the suffix to be used when quoting
* a literal value (possibly {@code null})
* - {@code CREATE_PARAMS} - String : params used when creating the type
* (possibly {@code null})
* - {@code NULLABLE} - short : shows if the value is nullable:
*
* - {@code DatabaseMetaData.typeNoNulls} : {@code NULL}s not permitted
* - {@code DatabaseMetaData.typeNullable} : {@code NULL}s are permitted
* - {@code DatabaseMetaData.typeNullableUnknown} : {@code NULL} status
* unknown
*
*
* - {@code CASE_SENSITIVE} - boolean : true if the type is case sensitive
*
* - {@code SEARCHABLE} - short : how this type can be used with {@code WHERE}
* clauses:
*
* - {@code DatabaseMetaData.typePredNone} - {@code WHERE} clauses cannot be used
* - {@code DatabaseMetaData.typePredChar} - support for {@code
* WHERE...LIKE} only
* - {@code DatabaseMetaData.typePredBasic} - support except for {@code
* WHERE...LIKE}
* - {@code DatabaseMetaData.typeSearchable} - support for all {@code
* WHERE} clauses
*
*
* - {@code UNSIGNED_ATTRIBUTE} - boolean - the type is unsigned or not
* - {@code FIXED_PREC_SCALE} - boolean - fixed precision = it can be used
* as a money value
* - {@code AUTO_INCREMENT} - boolean - can be used as an auto-increment
* value
* - {@code LOCAL_TYPE_NAME} - String - a localized version of the type
* name (possibly {@code null})
* - {@code MINIMUM_SCALE} - short - the minimum scale supported
* - {@code MAXIMUM_SCALE} - short - the maximum scale supported
* - {@code SQL_DATA_TYPE} - int - not used
* - {@code SQL_DATETIME_SUB} - int - not used
* - {@code NUM_PREC_RADIX} - int - number radix (typically 2 or 10)
*
*
* @return a {@code ResultSet} which is structured as described above.
* @throws SQLException
* a database error occurred.
*/
public ResultSet getTypeInfo() throws SQLException;
/**
* Returns a description of the User Defined Types (UDTs) defined in a given
* schema, which includes the types {@code DISTINCT}, {@code STRUCT} and
* {@code JAVA_OBJECT}.
*
* The types matching the supplied the specified catalog, schema, type name
* and type are returned as rows in a {@code ResultSet} with columns of
* information as follows:
*
* - {@code TABLE_CAT} - String - catalog name (possibly {@code null})
* - {@code TABLE_SCHEM} - String - schema name (possibly {@code null})
* - {@code TABLE_NAME} - String - The table name
* - {@code CLASS_NAME} - String - The Java class name
* - {@code DATA_TYPE} - int - The SQL type as specified in {@code
* java.sql.Types}. One of DISTINCT, STRUCT, and JAVA_OBJECT
* - {@code REMARKS} - String - A comment which describes the type
* - {@code BASE_TYPE} - short - A type code. For a DISTINCT type, the
* source type. For a structured type this is the type that implements the
* user generated reference type of the {@code SELF_REFERENCING_COLUMN}.
* This is defined in {@code java.sql.Types}, and will be {@code null} if
* the {@code DATA_TYPE} does not match these criteria.
*
*
* If the driver does not support UDTs, the {@code ResultSet} is empty.
*
* @param catalog
* a catalog name. {@code null} is used to imply no narrowing of
* the search by catalog name. Otherwise, the name must match a
* catalog name held in the database, with "" used to retrieve
* those without a catalog name.
* @param schemaPattern
* a schema name pattern. {@code null} is used to imply no
* narrowing of the search using schema name. Otherwise, the name
* must match a schema name in the database, with "" used to
* retrieve those without a schema name.
* @param typeNamePattern
* a type name pattern, which should match a type name as stored in the
* database. It may be fully qualified.
* @param types
* a list of the UDT types to include in the list - one of
* {@code DISTINCT}, {@code STRUCT} or {@code JAVA_OBJECT}.
* @return a {@code ResultSet} in the format described above.
* @throws SQLException
* a database error occurred.
*/
public ResultSet getUDTs(String catalog, String schemaPattern,
String typeNamePattern, int[] types) throws SQLException;
/**
* Returns the URL for this database.
*
* @return the URL for the database. {@code null} if it cannot be generated.
* @throws SQLException
* a database error occurred.
*/
public String getURL() throws SQLException;
/**
* Determine the user name as known by the database.
*
* @return the user name.
* @throws SQLException
* a database error occurred.
*/
public String getUserName() throws SQLException;
/**
* Returns which of a table's columns are automatically updated when any
* value in a row is updated.
*
* The result is laid-out in the following columns:
*
* - {@code SCOPE} - short - not used
* - {@code COLUMN_NAME} - String - Column name
* - {@code DATA_TYPE} - int - The SQL data type, as defined in {@code
* java.sql.Types}
* - {@code TYPE_NAME} - String - The SQL type name, data source dependent
*
* - {@code COLUMN_SIZE} - int - Precision for numeric types
* - {@code BUFFER_LENGTH} - int - Length of a column value in bytes
* - {@code DECIMAL_DIGITS} - short - Number of digits after the decimal
* point
* - {@code PSEUDO_COLUMN} - short - If this is a pseudo-column (for
* example, an Oracle {@code ROWID}):
*
* - {@code DatabaseMetaData.bestRowUnknown} - don't know whether this is
* a pseudo column
* - {@code DatabaseMetaData.bestRowNotPseudo} - column is not pseudo
* - {@code DatabaseMetaData.bestRowPseudo} - column is a pseudo column
*
*
*
*
* @param catalog
* a catalog name. {@code null} is used to imply no narrowing of
* the search using catalog name. Otherwise, the name must match
* a catalog name held in the database, with "" used to retrieve
* those without a catalog name.
* @param schema
* a schema name pattern. {@code null} is used to imply no
* narrowing of the search using schema names. Otherwise, the
* name must match a schema name in the database, with "" used to
* retrieve those without a schema name.
* @param table
* a table name. It must match the name of a table in the
* database.
* @return a {@code ResultSet} containing the descriptions, one row for each
* column, in the format defined above.
* @throws SQLException
* a database error occurred.
*/
public ResultSet getVersionColumns(String catalog, String schema,
String table) throws SQLException;
/**
* Determines whether a visible row insert can be detected by calling {@code
* ResultSet.rowInserted}.
*
* @param type
* the {@code ResultSet} type. This may be one of {@code
* ResultSet.TYPE_SCROLL_SENSITIVE} or {@code
* ResultSet.TYPE_SCROLL_INSENSITIVE} or {@code
* ResultSet.TYPE_FORWARD_ONLY},
* @return {@code true} if {@code ResultSet.rowInserted} detects a visible
* row insert otherwise {@code false}.
* @throws SQLException
* a database error occurred.
* @see ResultSet#rowInserted()
*/
public boolean insertsAreDetected(int type) throws SQLException;
/**
* Determine whether a fully qualified table name is prefixed or suffixed to
* a fully qualified table name.
*
* @return {@code true} if the catalog appears at the start of a fully
* qualified table name, {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean isCatalogAtStart() throws SQLException;
/**
* Determines whether the database is in read-only mode.
*
* @return {@code true} if the database is in read-only mode, {@code false}
* otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean isReadOnly() throws SQLException;
/**
* Determines whether updates are made to a copy of, or directly on, Large Objects
* ({@code LOB}s).
*
* @return {@code true} if updates are made to a copy of the Large Object,
* {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean locatorsUpdateCopy() throws SQLException;
/**
* Determines whether the database handles concatenations between {@code NULL} and
* non-{@code NULL} values by producing a {@code NULL} output.
*
* @return {@code true} if {@code NULL} to non-{@code NULL} concatenations
* produce a {@code NULL} result, {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean nullPlusNonNullIsNull() throws SQLException;
/**
* Determines whether {@code NULL} values are always sorted to the end of sorted
* results regardless of requested sort order. This means that they will
* appear at the end of sorted lists whatever other non-{@code NULL} values
* may be present.
*
* @return {@code true} if {@code NULL} values are sorted at the end,
* {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean nullsAreSortedAtEnd() throws SQLException;
/**
* Determines whether {@code NULL} values are always sorted at the start of the
* sorted list, irrespective of the sort order. This means that they appear
* at the start of sorted lists, whatever other values may be present.
*
* @return {@code true} if {@code NULL} values are sorted at the start,
* {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean nullsAreSortedAtStart() throws SQLException;
/**
* Determines whether {@code NULL} values are sorted high - i.e. they are sorted
* as if they are higher than any other values.
*
* @return {@code true} if {@code NULL} values are sorted high, {@code
* false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean nullsAreSortedHigh() throws SQLException;
/**
* Determines whether {@code NULL} values are sorted low - i.e. they are sorted as
* if they are lower than any other values.
*
* @return {@code true} if {@code NULL} values are sorted low, {@code false}
* otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean nullsAreSortedLow() throws SQLException;
/**
* Determines whether deletes made by others are visible, for a specified {@code
* ResultSet} type.
*
* @param type
* the type of the {@code ResultSet}. It may be either {@code
* ResultSet.TYPE_FORWARD_ONLY} or {@code
* ResultSet.TYPE_SCROLL_INSENSITIVE}, or {@code
* ResultSet.TYPE_SCROLL_SENSITIVE})
* @return {@code true} if others' deletes are visible, {@code false}
* otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean othersDeletesAreVisible(int type) throws SQLException;
/**
* Determines whether inserts made by others are visible, for a specified {@code
* ResultSet} type.
*
* @param type
* the type of the {@code ResultSet}. May be {@code
* ResultSet.TYPE_FORWARD_ONLY}, or {@code
* ResultSet.TYPE_SCROLL_INSENSITIVE}, or {@code
* ResultSet.TYPE_SCROLL_SENSITIVE}
* @return {@code true} if others' inserts are visible, otherwise {@code
* false}.
* @throws SQLException
* a database error occurred.
*/
public boolean othersInsertsAreVisible(int type) throws SQLException;
/**
* Determines whether updates made by others are visible, for a specified {@code
* ResultSet} type.
*
* @param type
* the type of the {@code ResultSet}. May be {@code
* ResultSet.TYPE_FORWARD_ONLY}, or {@code
* ResultSet.TYPE_SCROLL_INSENSITIVE}, or {@code
* ResultSet.TYPE_SCROLL_SENSITIVE}
* @return {@code true} if others' inserts are visible, otherwise {@code
* false}.
* @throws SQLException
* a database error occurred.
*/
public boolean othersUpdatesAreVisible(int type) throws SQLException;
/**
* Determines whether a {@code ResultSet} can see its own deletes, for a
* specified {@code ResultSet} type.
*
* @param type
* the type of the {@code ResultSet}: {@code
* ResultSet.TYPE_FORWARD_ONLY}, {@code
* ResultSet.TYPE_SCROLL_INSENSITIVE}, or {@code
* ResultSet.TYPE_SCROLL_SENSITIVE}
* @return {@code true} if the deletes are seen by the {@code
* ResultSet} itself, otherwise {@code false}.
* @throws SQLException
* a database error occurred.
*/
public boolean ownDeletesAreVisible(int type) throws SQLException;
/**
* Determines whether a {@code ResultSet} can see its own inserts, for a
* specified {@code ResultSet} type.
*
* @param type
* the type of the {@code ResultSet}: {@code
* ResultSet.TYPE_FORWARD_ONLY}, {@code
* ResultSet.TYPE_SCROLL_INSENSITIVE}, or {@code
* ResultSet.TYPE_SCROLL_SENSITIVE}
* @return {@code true} if the inserts are seen by the {@code
* ResultSet} itself, otherwise {@code false}.
* @throws SQLException
* a database error occurred.
*/
public boolean ownInsertsAreVisible(int type) throws SQLException;
/**
* Determines whether a {@code ResultSet} can see its own updates, for a
* specified {@code ResultSet} type.
*
* @param type
* the type of the {@code ResultSet}: {@code
* ResultSet.TYPE_FORWARD_ONLY}, {@code
* ResultSet.TYPE_SCROLL_INSENSITIVE}, or {@code
* ResultSet.TYPE_SCROLL_SENSITIVE}
* @return {@code true} if the updates are seen by the {@code
* ResultSet} itself, otherwise {@code false}.
* @throws SQLException
* a database error occurred.
*/
public boolean ownUpdatesAreVisible(int type) throws SQLException;
/**
* Determines whether the database treats SQL identifiers that are in mixed
* case (and unquoted) as case insensitive. If {@code true} then the
* database stores them in lower case.
*
* @return {@code true} if unquoted SQL identifiers are stored in lower
* case, {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean storesLowerCaseIdentifiers() throws SQLException;
/**
* Determines whether the database considers mixed case quoted SQL
* identifiers as case insensitive and stores them in lower case.
*
* @return {@code true} if quoted SQL identifiers are stored in lower case,
* {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean storesLowerCaseQuotedIdentifiers() throws SQLException;
/**
* Determines whether the database considers mixed case unquoted SQL
* identifiers as case insensitive and stores them in mixed case.
*
* @return {@code true} if unquoted SQL identifiers as stored in mixed case,
* {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean storesMixedCaseIdentifiers() throws SQLException;
/**
* Determines whether the database considers identifiers as case insensitive
* if they are mixed case quoted SQL. The database stores them in mixed
* case.
*
* @return {@code true} if quoted SQL identifiers are stored in mixed case,
* {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean storesMixedCaseQuotedIdentifiers() throws SQLException;
/**
* Determines whether the database considers mixed case unquoted SQL
* identifiers as case insensitive and stores them in upper case.
*
* @return {@code true} if unquoted SQL identifiers are stored in upper
* case, {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean storesUpperCaseIdentifiers() throws SQLException;
/**
* Determines whether the database considers mixed case quoted SQL
* identifiers as case insensitive and stores them in upper case.
*
* @return {@code true} if quoted SQL identifiers are stored in upper case,
* {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean storesUpperCaseQuotedIdentifiers() throws SQLException;
/**
* Determines whether the database supports {@code ALTER TABLE} operation with
* {@code ADD COLUMN}.
*
* @return {@code true} if {@code ALTER TABLE} with {@code ADD COLUMN} is
* supported, {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsAlterTableWithAddColumn() throws SQLException;
/**
* Determines whether the database supports {@code ALTER TABLE} operation with
* {@code DROP COLUMN}.
*
* @return {@code true} if {@code ALTER TABLE} with {@code DROP COLUMN} is
* supported, {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsAlterTableWithDropColumn() throws SQLException;
/**
* Determines whether the database supports the ANSI92 entry level SQL grammar.
*
* @return {@code true} if the ANSI92 entry level SQL grammar is supported,
* {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsANSI92EntryLevelSQL() throws SQLException;
/**
* Determines whether the database supports the ANSI92 full SQL grammar.
*
* @return {@code true} if the ANSI92 full SQL grammar is supported, {@code
* false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsANSI92FullSQL() throws SQLException;
/**
* Determines whether the database supports the ANSI92 intermediate SQL Grammar.
*
* @return {@code true} if the ANSI92 intermediate SQL grammar is supported,
* {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsANSI92IntermediateSQL() throws SQLException;
/**
* Determines whether the database supports batch updates.
*
* @return {@code true} if batch updates are supported, {@code false}
* otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsBatchUpdates() throws SQLException;
/**
* Determines whether catalog names may be used in data manipulation
* statements.
*
* @return {@code true} if catalog names can be used in data manipulation
* statements, {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsCatalogsInDataManipulation() throws SQLException;
/**
* Determines whether catalog names can be used in index definition statements.
*
* @return {@code true} if catalog names can be used in index definition
* statements, {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsCatalogsInIndexDefinitions() throws SQLException;
/**
* Determines whether catalog names can be used in privilege definition
* statements.
*
* @return {@code true} if catalog names can be used in privilege definition
* statements, {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsCatalogsInPrivilegeDefinitions() throws SQLException;
/**
* Determines whether catalog names can be used in procedure call statements.
*
* @return {@code true} if catalog names can be used in procedure call
* statements.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsCatalogsInProcedureCalls() throws SQLException;
/**
* Determines whether catalog names may be used in table definition statements.
*
* @return {@code true} if catalog names can be used in definition
* statements, {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsCatalogsInTableDefinitions() throws SQLException;
/**
* Determines whether the database supports column aliasing.
*
* If aliasing is supported, then the SQL AS clause is used to provide names
* for computed columns and provide alias names for columns.
*
* @return {@code true} if column aliasing is supported, {@code false}
* otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsColumnAliasing() throws SQLException;
/**
* Determines whether the database supports the {@code CONVERT} operation between
* SQL types.
*
* @return {@code true} if the {@code CONVERT} operation is supported,
* {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsConvert() throws SQLException;
/**
* Determines whether the database supports {@code CONVERT} operation for two
* supplied SQL types.
*
* @param fromType
* the Type to convert from, as defined by {@code java.sql.Types}
* @param toType
* the Type to convert to, as defined by {@code java.sql.Types}
* @return {@code true} if the {@code CONVERT} operation is supported for
* these types, {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsConvert(int fromType, int toType)
throws SQLException;
/**
* Determines whether the database supports the Core SQL Grammar for ODBC.
*
* @return {@code true} if the Core SQL Grammar is supported, {@code false}
* otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsCoreSQLGrammar() throws SQLException;
/**
* Determines whether the database supports correlated sub-queries.
*
* @return {@code true} if the database does support correlated sub-queries
* and {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsCorrelatedSubqueries() throws SQLException;
/**
* Determines whether the database allows both data definition and data
* manipulation statements inside a transaction.
*
* @return {@code true} if both types of statement are permitted, {@code
* false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsDataDefinitionAndDataManipulationTransactions()
throws SQLException;
/**
* Determines whether the database only allows data manipulation statements inside
* a transaction.
*
* @return {@code true} if data manipulation statements are permitted only within a transaction,
* {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsDataManipulationTransactionsOnly()
throws SQLException;
/**
* Determines whether table correlation names are required to be different from
* the names of the tables, when they are supported.
*
* @return {@code true} if correlation names must be different from table
* names, {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsDifferentTableCorrelationNames() throws SQLException;
/**
* Determines whether expressions in {@code ORDER BY} lists are supported.
*
* @return {@code true} if expressions in {@code ORDER BY} lists are
* supported.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsExpressionsInOrderBy() throws SQLException;
/**
* Determines whether the Extended SQL Grammar for ODBC is supported.
*
* @return {@code true} if the Extended SQL Grammar is supported, {@code
* false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsExtendedSQLGrammar() throws SQLException;
/**
* Determines whether the database supports full nested outer joins.
*
* @return {@code true} if full nested outer joins are supported, {@code
* false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsFullOuterJoins() throws SQLException;
/**
* Determines whether auto generated keys can be returned when a statement
* executes.
*
* @return {@code true} if auto generated keys can be returned, {@code
* false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsGetGeneratedKeys() throws SQLException;
/**
* Determines whether the database supports {@code GROUP BY} clauses.
*
* @return {@code true} if the {@code GROUP BY} clause is supported, {@code
* false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsGroupBy() throws SQLException;
/**
* Determines whether the database supports using a column name in a {@code GROUP
* BY} clause not included in the {@code SELECT} statement as long as all of
* the columns in the {@code SELECT} statement are used in the {@code GROUP
* BY} clause.
*
* @return {@code true} if {@code GROUP BY} clauses can use column names in
* this way, {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsGroupByBeyondSelect() throws SQLException;
/**
* Determines whether the database supports using a column name in a {@code GROUP
* BY} clause that is not in the {@code SELECT} statement.
*
* @return {@code true} if {@code GROUP BY} clause can use a column name not
* in the {@code SELECT} statement, {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsGroupByUnrelated() throws SQLException;
/**
* Determines whether the database supports SQL Integrity Enhancement
* Facility.
*
* @return {@code true} if the Integrity Enhancement Facility is supported,
* {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsIntegrityEnhancementFacility() throws SQLException;
/**
* Determines whether the database supports a {@code LIKE} escape clause.
*
* @return {@code true} if LIKE escape clause is supported, {@code false}
* otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsLikeEscapeClause() throws SQLException;
/**
* Determines whether the database provides limited support for outer join
* operations.
*
* @return {@code true} if there is limited support for outer join
* operations, {@code false} otherwise. This will be {@code true} if
* {@code supportsFullOuterJoins} returns {@code true}.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsLimitedOuterJoins() throws SQLException;
/**
* Determines whether the database supports Minimum SQL Grammar for ODBC.
*
* @return {@code true} if the Minimum SQL Grammar is supported, {@code
* false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsMinimumSQLGrammar() throws SQLException;
/**
* Determines whether the database treats mixed case unquoted SQL identifiers as
* case sensitive storing them in mixed case.
*
* @return {@code true} if unquoted SQL identifiers are stored in mixed
* case, {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsMixedCaseIdentifiers() throws SQLException;
/**
* Determines whether the database considers mixed case quoted SQL
* identifiers as case sensitive, storing them in mixed case.
*
* @return {@code true} if quoted SQL identifiers are stored in mixed case,
* {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsMixedCaseQuotedIdentifiers() throws SQLException;
/**
* Determines whether it is possible for a single {@code CallableStatement} to
* return multiple {@code ResultSet}s simultaneously.
*
* @return {@code true} if a single {@code CallableStatement} can return
* multiple {@code ResultSet}s simultaneously, {@code false}
* otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsMultipleOpenResults() throws SQLException;
/**
* Determines whether retrieving multiple {@code ResultSet}s from a single
* call to the {@code execute} method is supported.
*
* @return {@code true} if multiple {@code ResultSet}s can be retrieved,
* {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsMultipleResultSets() throws SQLException;
/**
* Determines whether multiple simultaneous transactions on
* different connections are supported.
*
* @return {@code true} if multiple open transactions are supported, {@code
* false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsMultipleTransactions() throws SQLException;
/**
* Determines whether callable statements with named parameters is supported.
*
* @return {@code true} if named parameters can be used with callable
* statements, {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsNamedParameters() throws SQLException;
/**
* Determines whether columns in the database can be defined as non-nullable.
*
* @return {@code true} if columns can be defined non-nullable, {@code
* false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsNonNullableColumns() throws SQLException;
/**
* Determines whether keeping cursors open across commit operations is
* supported.
*
* @return {@code true} if cursors can be kept open across commit
* operations, {@code false} if they might get closed.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsOpenCursorsAcrossCommit() throws SQLException;
/**
* Determines whether the database can keep cursors open across rollback
* operations.
*
* @return {@code true} if cursors can be kept open across rollback
* operations, {@code false} if they might get closed.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsOpenCursorsAcrossRollback() throws SQLException;
/**
* Determines whether keeping statements open across commit operations is
* supported.
*
* @return {@code true} if statements can be kept open, {@code false} if
* they might not.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsOpenStatementsAcrossCommit() throws SQLException;
/**
* Determines whether keeping statements open across rollback operations is
* supported.
*
* @return {@code true} if statements can be kept open, {@code false} if
* they might not.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsOpenStatementsAcrossRollback() throws SQLException;
/**
* Determines whether using a column in an {@code ORDER BY} clause that is
* not in the {@code SELECT} statement is supported.
*
* @return {@code true} if it is possible to {@code ORDER} using a column
* not in the {@code SELECT}, {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsOrderByUnrelated() throws SQLException;
/**
* Determines whether outer join operations are supported.
*
* @return {@code true} if outer join operations are supported, {@code
* false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsOuterJoins() throws SQLException;
/**
* Determines whether positioned {@code DELETE} statements are supported.
*
* @return {@code true} if the database supports positioned {@code DELETE}
* statements.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsPositionedDelete() throws SQLException;
/**
* Determines whether positioned {@code UPDATE} statements are supported.
*
* @return {@code true} if the database supports positioned {@code UPDATE}
* statements, {@code false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsPositionedUpdate() throws SQLException;
/**
* Determines whether there is support for a given concurrency style for the
* given {@code ResultSet}.
*
* @param type
* the {@code ResultSet} type, as defined in {@code
* java.sql.ResultSet}:
*
* - {@code ResultSet.TYPE_FORWARD_ONLY}
* - {@code ResultSet.TYPE_SCROLL_INSENSITIVE}
* - {@code ResultSet.TYPE_SCROLL_SENSITIVE}
*
* @param concurrency
* a concurrency type, which may be one of {@code
* ResultSet.CONCUR_READ_ONLY} or {@code
* ResultSet.CONCUR_UPDATABLE}.
* @return {@code true} if that concurrency and {@code ResultSet} type
* pairing is supported otherwise {@code false}.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsResultSetConcurrency(int type, int concurrency)
throws SQLException;
/**
* Determines whether the supplied {@code ResultSet} holdability mode is
* supported.
*
* @param holdability
* as specified in {@code java.sql.ResultSet}: {@code
* ResultSet.HOLD_CURSORS_OVER_COMMIT} or {@code
* ResultSet.CLOSE_CURSORS_AT_COMMIT}
* @return {@code true} if the given ResultSet holdability is supported and
* if it isn't then {@code false}.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsResultSetHoldability(int holdability)
throws SQLException;
/**
* Determines whether the supplied {@code ResultSet} type is supported.
*
* @param type
* the {@code ResultSet} type as defined in {@code
* java.sql.ResultSet}: {@code ResultSet.TYPE_FORWARD_ONLY},
* {@code ResultSet.TYPE_SCROLL_INSENSITIVE}, or {@code
* ResultSet.TYPE_SCROLL_SENSITIVE}
* @return {@code true} if the {@code ResultSet} type is supported, {@code
* false} otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsResultSetType(int type) throws SQLException;
/**
* Determines whether savepoints for transactions are supported.
*
* @return {@code true} if savepoints are supported, {@code false}
* otherwise.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsSavepoints() throws SQLException;
/**
* Determines whether a schema name may be used in a data manipulation
* statement.
*
* @return {@code true} if a schema name can be used in a data manipulation,
* otherwise {@code false}.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsSchemasInDataManipulation() throws SQLException;
/**
* Determines whether a schema name may be used in an index definition
* statement.
*
* @return {@code true} if a schema name can be used in an index definition,
* otherwise {@code false}.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsSchemasInIndexDefinitions() throws SQLException;
/**
* Determines whether a database schema name can be used in a privilege
* definition statement.
*
* @return {@code true} if a database schema name may be used in a privilege
* definition, otherwise {@code false}
* @throws SQLException
* a database error occurred.
*/
public boolean supportsSchemasInPrivilegeDefinitions() throws SQLException;
/**
* Determines whether a procedure call statement may be contain in a schema name.
*
* @return {@code true} if a schema name can be used in a procedure call,
* otherwise {@code false}.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsSchemasInProcedureCalls() throws SQLException;
/**
* Determines whether a schema name can be used in a table definition statement.
*
* @return {@code true} if a schema name can be used in a table definition,
* otherwise {@code false}.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsSchemasInTableDefinitions() throws SQLException;
/**
* Determines whether the {@code SELECT FOR UPDATE} statement is supported.
*
* @return {@code true} if {@code SELECT FOR UPDATE} statements are
* supported, otherwise {@code false}.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsSelectForUpdate() throws SQLException;
/**
* Determines whether statement pooling is supported.
*
* @return {@code true} of the database does support statement pooling,
* otherwise {@code false}.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsStatementPooling() throws SQLException;
/**
* Determines whether stored procedure calls using the stored procedure
* escape syntax is supported.
*
* @return {@code true} if stored procedure calls using the stored procedure
* escape syntax are supported, otherwise {@code false}.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsStoredProcedures() throws SQLException;
/**
* Determines whether subqueries in comparison expressions are supported.
*
* @return {@code true} if subqueries are supported in comparison
* expressions.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsSubqueriesInComparisons() throws SQLException;
/**
* Determines whether subqueries in {@code EXISTS} expressions are supported.
*
* @return {@code true} if subqueries are supported in {@code EXISTS}
* expressions, otherwise {@code false}.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsSubqueriesInExists() throws SQLException;
/**
* Determines whether subqueries in {@code IN} statements are supported.
*
* @return {@code true} if subqueries are supported in {@code IN} statements,
* otherwise {@code false}.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsSubqueriesInIns() throws SQLException;
/**
* Determines whether subqueries in quantified expressions are supported.
*
* @return {@code true} if subqueries are supported, otherwise {@code false}.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsSubqueriesInQuantifieds() throws SQLException;
/**
* Determines whether the database has table correlation names support.
*
* @return {@code true} if table correlation names are supported, otherwise
* {@code false}.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsTableCorrelationNames() throws SQLException;
/**
* Determines whether a specified transaction isolation level is supported.
*
* @param level
* the transaction isolation level, as specified in {@code
* java.sql.Connection}: {@code TRANSACTION_NONE}, {@code
* TRANSACTION_READ_COMMITTED}, {@code
* TRANSACTION_READ_UNCOMMITTED}, {@code
* TRANSACTION_REPEATABLE_READ}, {@code TRANSACTION_SERIALIZABLE}
* @return {@code true} if the specific isolation level is supported,
* otherwise {@code false}.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsTransactionIsolationLevel(int level)
throws SQLException;
/**
* Determines whether transactions are supported.
*
* If transactions are not supported, then the {@code commit} method does
* nothing and the transaction isolation level is always {@code
* TRANSACTION_NONE}.
*
* @return {@code true} if transactions are supported, otherwise {@code
* false}.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsTransactions() throws SQLException;
/**
* Determines whether the {@code SQL UNION} operation is supported.
*
* @return {@code true} of the database does support {@code UNION}, otherwise
* {@code false}.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsUnion() throws SQLException;
/**
* Determines whether the {@code SQL UNION ALL} operation is supported.
*
* @return {@code true} if the database does support {@code UNION ALL},
* otherwise {@code false}.
* @throws SQLException
* a database error occurred.
*/
public boolean supportsUnionAll() throws SQLException;
/**
* Determines whether the method {@code ResultSet.rowUpdated} can detect a visible
* row update for the specified {@code ResultSet} type.
*
* @param type
* {@code ResultSet} type: {@code ResultSet.TYPE_FORWARD_ONLY},
* {@code ResultSet.TYPE_SCROLL_INSENSITIVE}, or {@code
* ResultSet.TYPE_SCROLL_SENSITIVE}
* @return {@code true} detecting changes is possible, otherwise {@code
* false}.
* @throws SQLException
* a database error occurred.
*/
public boolean updatesAreDetected(int type) throws SQLException;
/**
* Determines whether this database uses a file for each table.
*
* @return {@code true} if the database uses one file for each table,
* otherwise {@code false}.
* @throws SQLException
* a database error occurred.
*/
public boolean usesLocalFilePerTable() throws SQLException;
/**
* Determines whether this database uses a local file to store tables.
*
* @return {@code true} if the database stores tables in a local file,
* otherwise {@code false}.
* @throws SQLException
* a database error occurred.
*/
public boolean usesLocalFiles() throws SQLException;
/**
* Determine if a SQLException while autoCommit is true indicates that all
* open ResultSets are closed, even ones that are holdable
*
* @return true if all open ResultSets are closed
* @throws SQLException
* if any error occurs
*/
boolean autoCommitFailureClosesAllResultSets() throws SQLException;
/**
* Returns a list of the client info properties of the driver.
*
* @return a list of the client info
* @throws SQLException
* if any error occurs
*/
ResultSet getClientInfoProperties() throws SQLException;
/**
* Returns a description according to the given catalog's system or user
* function parameters and return type.
*
* @param catalog
* the given catalong
* @param schemaPattern
* the schema pattern
* @param functionNamePattern
* the function name pattern
* @param columnNamePattern
* the column name pattern
* @return a description of user functions
* @throws SQLException
* if any error occurs
*/
ResultSet getFunctionColumns(String catalog, String schemaPattern,
String functionNamePattern, String columnNamePattern)
throws SQLException;
/**
* Returns a description of the system and user functions available
* according to the given catalog.
*
* @param catalog
* the given catalog
* @param schemaPattern
* the schema pattern
* @param functionNamePattern
* the function name pattern
* @return user functions
* @throws SQLException
* if any error occurs
*/
ResultSet getFunctions(String catalog, String schemaPattern,
String functionNamePattern) throws SQLException;
/**
* Returns the lifetime for which a RowId object remains valid if this data
* source supports the SQL ROWID type
*
* @return the time of a RowId object that remains valid.
* @throws SQLException
* if any error occurs
*/
RowIdLifetime getRowIdLifetime() throws SQLException;
/**
* Returns the schema names ordered by TABLE_CATALOG and TABLE_SCHEMA.
*
* @param catalog
* the catalog
* @param schemaPattern
* the schema pattern
* @return the schema names
* @throws SQLException
* if any error occurs
*/
ResultSet getSchemas(String catalog, String schemaPattern)
throws SQLException;
/**
* Determine if this database supports invoking user-defined or vendor
* functions using the stored procedure escape syntax.
*
* @return true if this database supports invoking user-defined or vendor
* functions using the stored procedure escape syntax.
* @throws SQLException
* if any error occurs
*/
boolean supportsStoredFunctionsUsingCallSyntax() throws SQLException;
}