SELECT user.id AS id, user.name AS name, charge.money AS money, record.time AS time
FROM user
LEFT JOIN (SELECT userId, SUM(money) AS money FROM chargerecord GROUP BY userId) AS charge ON user.id = charge.userId
LEFT JOIN (SELECT callId, SUM(time) AS time FROM record GROUP BY callId) AS record ON user.id = record.callId
ORDER BY user.id

怎么查 楼上已经给出了 我有一篇关于多表查询的文章 希望对楼主了解多表查询有帮助：SQL的几种连接：内连接、左联接、右连接、全连接、交叉连接

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