Next, ensure that the index has these columns in the proper sequence (according to the ORDER BY clause), so that a sort can be avoided.

接下来，确保索引中这些列有适当的顺序(按照ORDER by子句)，这样可以避免排序。

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The update clause will ensure that an update lock is held on the selected rows.

更新子句将确保更新锁定在被选择的行上。

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Ensure that the user ID or PUBLIC is defined in the WITH use FOR clause of the trusted context.

确保在可信上下文中的WITH USE for子句中定义了用户ID或PUBLIC。

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The purpose of the establishment clause, they argue, is to ensure that state-sponsored gatherings (such as sporting events at public schools) do not endorse the viewpoint of one religious group at the expense of another.

ECONOMIST: Prayer in schools