Oracle merge into 批量操做能够支持重复记录

merge into Oracle中使用web merge into XXX using () on (t1.col1 = t2.col1 and t1.col2 = t2.col2) WHEN MATCHED THEN UPDATE WHEN NOT MATCHED THEN INSERT 批量更新/插入数据时，即便数据是重复的，也能成功完成操做。重复

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