更新和删除已存在的数据非常简单。

Updating and deleting existing data is just as easy.

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使用后像业务对象样式的操作有创建、更新和删除。

Operations that use an after-image business object style are create, update and delete.

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加入、更新和删除资料录。

Add, update, and delete records.

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更新和删除规则，可以使用相同的过程。

You can use the same process to update and delete rules.

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集合具有一些您可以添加、移除、更新和删除的成员项。

Collections have member items that you can add, remove, update and delete.

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下面我们将介绍，对数据库的操作包括创建、更新和删除。

As we will show, for a database, the operations include create, update, and delete.

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下面我们将介绍，对数据库的操作包括创建、更新和删除。

As we will show, for a database, the operations include create, update, and delete.

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