mysql中先执行where还是group by

having可以用聚合函数，如having sum(money) > 1000

SELECT user_type,is_admin ,SUM(id) FROM saut_m_user WHERE id > 100 GROUP BY user_type, is_admin HAVING SUM (status) < 500 ORDER BY is_admin ASC

 

 

mysql中先执行where还是group by

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