另一个主要增强是支持生成主键。

Another major enhancement is the support for generating primary keys.

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可以将该代理列指定为主键列。

This surrogate column can be designated the primary key column.

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第一列(ID)是此表的主键。

The first column (ID) is the primary key of the table.

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主键、引用完整性和检查约束。

Primary key, referential integrity, and check constraints.

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留下空的主键，并点击Next。

Leave the primary key empty and click Next.

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Entity类需要一个主键。

An Entity class needs a primary key.

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标识Catalog的主键。

The primary key identifying the catalog

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这类似于数据库中选择一列作为主键。

This is analogous to making a column in a database a primary key.

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允许您定义表的主键、惟一键和外键。

The keys view allows you to define primary, unique, and foreign keys for the table.

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输出为9：匹配的单行的正确主键。

The output is 9: the correct primary key of the sole row that matches.

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ID被设置为自动增量并作为主键。

The ID is set to auto-increment and is used as the primary key.

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还将ID列标识为表的主键。

You've also identified the id column as the table's primary key.

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自动生成主键和未知的主键。

Automatic primary key and unknown primary key generation.

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即使没有定义主键，这种操作也会发生。

This happens when no primary key is defined.

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确保每个表都有一个主键。

Make sure each table has a primary key.

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这成为物理模型中的主键。

This becomes the primary key in the physical model.

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首先创建维度的主键到伪事实键的连接。

Initially create a join from the dimension's primary key, to the fake fact key.

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客户id列(作为主键)。

Customer ID column (as primary key).

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数据库结构更改，从主键删除了搜索路径。

Database structure change to remove search path from primary keys.

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在这个范例中，EPR中没有可用的主键。

In this case, there is no primary key available in the EPR.

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注意这个表有两个主键。

Note that this table has two primary keys.

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目标表必须有一个主键。

The target table must have a primary key.

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当定义bean 时，同时也定义主键。

You define the primary key when you define the bean.

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步骤5：向表添加主键。

Step 5: Adding a primary key to a table.

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一个项目的主键或惟一标识符是项目的名称。

The key or unique identifier for an item is the item's name.

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为了简便，我们选择TITLE作为主键列。

We selected TITLE as the key column for convenience.

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它们为ID属性使用数据库生成的主键值。

They use database-generated primary key values for the ID attribute.

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更新一本特定的、由其主键标识的书籍的属性。

Updates the attributes of a specific book that is identified by its primary key.

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我们检索到了当前用户的所有信息及提要主键。

You retrieve all of the user information and key the feed search off this user.

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我们检索到了当前用户的所有信息及提要主键。

You retrieve all of the user information and key the feed search off this user.

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