MYSQL UPDATE with IN and Subquery
- by Johal
Hi i have tables like this :
table entry :
id | total_comments
___________
1 | 0
2 | 0
3 | 0
4 | 0
table comments :
id | eid | comment
___________
1 | 1 | comment sdfd
2 | 1 | testing testing
3 | 1 | comment text
4 | 2 | dummy comment
5 | 2 | sample comment
6 | 1 | fg fgh dfh
Query i write :
UPDATE entry SET total_comments = total_comments + 1 WHERE id IN ( SELECT eid FROM comments WHERE id IN (1,2,3,4,5,6))
Results i get is :
table entry :
id | total_comments
___________
1 | 1
2 | 1
3 | 0
4 | 0
Expected results :
table entry :
id | total_comments
___________
1 | 4
2 | 2
3 | 0
4 | 0
Any help will be appreciated.
