logical primary

describes how to create a logical primary key on a table.

说明如何在表中创建逻辑主键。

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a logical primary key is created in the data source view even if you decide not to create the primary key in the database.

逻辑主键在数据源视图中创建，即使您决定不在数据库中创建主键也是如此。

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defining logical primary keys in a data source view

在数据源视图中创建逻辑主键

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any column can be used for the logical primary key, including a named calculation.

任何列都可用于逻辑主键（包括命名计算）。

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diagram pane, right-click the column or columns that you want to use to define a logical primary key, and then click

在相应的表中，右键单击要用来定义逻辑主键的列，再单击

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when you create a logical primary key, a unique constraint is created in the data source view and marked as a primary key constraint.

创建逻辑主键时，将在数据源视图中创建一个唯一约束并将其标记为主键约束。

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You may also have to re-create relationships or logical primary keys.

您还可能必须重新创建关系或逻辑主键。

provided by jukuu

to view instructions about setting a logical primary key in a data source view, see

若要查看有关在数据源视图中设置逻辑主键的说明，请单击以下主题

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moved step-by-step instructions to how to: set or modify a logical primary key using data source view designer

已将分步说明移至如何使用数据源视图设计器设置或修改逻辑主键

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any other existing logical primary key specified in the selected table is deleted.

在所选表中指定的任何其他现有逻辑主键都将被删除。

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the option to set a logical primary key is available only for tables that do not have a primary key.

设置逻辑主键的选项仅可用于没有主键的表。

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logical primary keys (needed if a primary key is not defining in the underlying table or is not included in the view or named query).

逻辑主键（仅当未在基础表中定义主键或者未在视图或命名查询中包含主键时需要）。

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defining logical primary keys in a data source view (analysis services)

在数据源视图中定义逻辑主键（AnalysisServices）

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