delete from语句
的有关信息介绍如下：
delete from A left join B on A.GUID=B.GUID where B.GUID is null
不考虑性能就用IN咯，比上一条要短一点
delete from A where GUID not in (select GUID from B)
delete from语句
Simone
发布于 2024-08-13 19:15:41
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