You cannot undo the action of executing a Delete query.

无法撤消执行“删除”查询的操作。

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You can delete all rows in a table by using a delete query.

您可以通过使用“删除”查询删除表中的所有行。

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If there is not a delete query argument, then it will return None.

如果其中没有“delete”查询参数，那么处理程序返回None。

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