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WC,血一般的教训!用了个 insert into select 居然被开除了
血一般的教训,请慎用 insert into select。同事应用之后,导致公司损失了近10w元,最终被公司开除。 事情的起因 公司的交易量比较大,使用的数据库是mysql,每天的增量差不多在百万左右,公司并没有分库分表,所以想维持这个表的性能只能考虑做数据迁移。
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