mysql刪除重複數據

也許你在百度中找到一條sql，欣喜若狂：  （腳本之家，目前爲止依然是錯誤的例子）mysql delete FROM `ex` WHERE phone in (SELECT c.phone FROM `ex` as c GROUP BY c.phone sql HAVING COUNT( * ) >1) and id not in (select max(b.id) from `ex` as b

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