MySQL错误1064

Question

I wrote this code in Oracle , but putting it in MySQL i get an error.

SQL query: Documentation

            Select idan
            From Certificare
            Having count(idav)=3
            Group by idan
            LIMIT 0, 25 

MySQL said: Documentation

#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'Group by {idan} LIMIT 0, 25' at line 4 strong text

Answer 1

GROUP BY在HAVING之前，这就是为什么会出现错误的原因。

Answer 2

Try this query

Select `idan`
From `Certificare`
Group by `idan`
Having count(`idav`)=3
LIMIT 0, 25

GROUP BY should come before Having