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Java Solution for LeetCode algorithm problems, continually updating
178\. Rank Scores
Medium
SQL Schema
Table: `Scores`
+-------------+---------+
| Column Name | Type |
+-------------+---------+
| id | int |
| score | decimal |
+-------------+---------+
id is the primary key for this table.
Each row of this table contains the score of a game. Score is a floating point value with two decimal places.
Write an SQL query to rank the scores. The ranking should be calculated according to the following rules:
* The scores should be ranked from the highest to the lowest.
* If there is a tie between two scores, both should have the same ranking.
* After a tie, the next ranking number should be the next consecutive integer value. In other words, there should be no holes between ranks.
Return the result table ordered by `score` in descending order.
The query result format is in the following example.
**Example 1:**
**Input:**
Scores table:
+----+-------+
| id | score |
+----+-------+
| 1 | 3.50 |
| 2 | 3.65 |
| 3 | 4.00 |
| 4 | 3.85 |
| 5 | 4.00 |
| 6 | 3.65 |
+----+-------+
**Output:**
+-------+------+
| score | rank |
+-------+------+
| 4.00 | 1 |
| 4.00 | 1 |
| 3.85 | 2 |
| 3.65 | 3 |
| 3.65 | 3 |
| 3.50 | 4 |
+-------+------+