SELECT条件为SUM

Question

我正在尝试执行一个查询，选择其users交易的SUM大于25的所有SELECT users.uid, SUM( transactions.credits_earned ) AS total FROM users, transactions WHERE users.uid = transactions.uid AND ???? GROUP BY users.uid 。 我有这个问题：

total

我尝试直接在条件中使用别名SUM和{{1}}本身，但显然它不起作用（并且有道理）。您是否知道如何保持查询简单？

谢谢你， 迪奥戈

Answer 1

SELECT users.uid, SUM( transactions.credits_earned ) AS total
FROM users INNER JOIN transactions
ON users.uid = transactions.uid 
GROUP BY users.uid
HAVING SUM(transactions.credits_earned) > 25

Answer 2

你可以尝试

SELECT users.uid, SUM( transactions.credits_earned ) AS total
FROM users, transactions
WHERE users.uid = transactions.uid
GROUP BY users.uid
HAVING SUM( transactions.credits_earned ) > 25

Answer 3

查看HAVING子句