• Home
• com.github.javadev
• leetcode-in-java
• 1.38
• source code
• script.sql

×

Project download

Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance.
Project price only 1 $

You can buy this project and download/modify it how often you want.

g1201_1300.s1280_students_and_examinations.script.sql Maven / Gradle / Ivy

# Write your MySQL query statement below
# #Easy #Database #2023_08_14_Time_1735_ms_(83.69%)_Space_0B_(100.00%)
SELECT s.student_id, s.student_name, sub.subject_name,
sum(case when sub.subject_name = e.subject_name then 1 else 0 end) as attended_exams
FROM Students s
cross join subjects sub
left join examinations e on e.student_id=s.student_id
group by 1,2,3
order by 1,2,3