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无错误地插入0行
原标题:insert 0 rows without error

插入可以在没有错误的情况下执行,但不能插入任何内容吗?我正在使用sql server 2008,不知道是否可以只检查@@error,或者是否缺少什么。对于更新,我检查@@error@rowcount。插入@@rowcount=0对我来说似乎很奇怪。

edit @Gregory I basically wondering how I should error check an insert statement. Are there any strange boundary cases where an insert execute and @@error is 0?

最佳回答

您可以使用返回空表的select来运行INSERT命令。

该语句将成功,但不会更新任何行。

INSERT INTO myTable (col1, col2)
SELECT col1, col2
FROM myOtherTable
WHERE 1 = 2
问题回答

您是否没有遇到错误,但没有插入?

或者这只是一个为什么你应该使用ROWCOUNT的问题?ROWCOUNT除了检查单个插入是否有效之外还有其他用途。

或者你在问@@ERROR?

此外,如果涉及替代触发器,则插入可能最终不插入任何行而不会出现错误。





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