进行了修改之后，如果查询性能没有优于您原始查询的，就撤销修改。

If after making the change, the performance of your query is not better than your original query, reverse the change.

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“弱-撤销(Weak - undo)”：与“弱- 1 -锁”相同，并且允许事务在任何点异常中断，然后撤销修改并重新启动。

"Weak-undo" : Like weak, plus a transaction may abort at any point, undoing its changes and restarting.

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以及编辑、应用或撤销在这些数据库表中进行的修改。

NET DataGrid control; and edit, apply or undo changes in these database tables.

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