uid` 和 `friendid` 的关系可以从左到右解读,如 uid 为 10 的朋友的 uid 分别有 11, 2276, 2236, 2293 这几个。 |
SELECT a.friendid, b.username FROM pw_friends a INNER JOIN pw_members b ON a.friendid = b.uid WHERE status = 0 AND a.uid = 10;
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