该数据集还描述了这两个表的主键。
The DataSet also depicts the primary keys of the two tables.
使用的主键是随机18位整数。
您无需担心处理主键或外键的麻烦。
You don't need to worry about messing around with the primary key or foreign key.
创建了表、主键、外键，和索引。
Created the tables, primary keys, foreign keys, and indexes.
辅键与其它表中的主键对应。
The secondary keys correspond with primary keys in other tables.
对于所有主键和外键的规范。
注意：企业复制要求在所有表上定义主键。
Note: Enterprise replication requires that primary keys be defined on all tables.
约束支持主键、外键、惟一和非空约束。
Constraints Supports, primary, foreign, unique, not null constraint.
除了具有主键以外，表通常还有一些辅键。
As well as having primary keys, tables typically have some secondary keys.
这表明将为一个静态非主键属性创建关系。
This indicates that the relationship will be created for a static non-primary key property.
为基于主键、外键和索引的通用查询提供访问
Provides access to common queries based on primary keys, foreign keys, and indexes.
如果没有主键，就会使用非长型字段的首列。
If there is no primary key, the first column that is not a long field is used.
可以配置端点之间的交叉引用主键之间的关系。
Relationships can be configured for cross-referencing primary keys between endpoints.
本文描述了实现作为主键的代理键的三种方法。
This article described three approaches to implementing a surrogate key as primary key.
实体中的多个属性可以组合成一个复合的主键。
Multiple attributes in the entity may be combined to form a composite primary key.
DAO可允许基于除主键之外的标准进行查询。
The DAO may allow queries based on criteria other than the primary key.
可以调整主键的生成策略，甚至指定复合主键。
You can adjust the primary-key creation strategy or even specify a composite primary key.
您将使用动态关系来基于主键对数据进行关联。
You use a dynamic relationship to correlate data based on primary keys.
这是因为主键相同的分组发起一个事件交付线程。
This is because a group with the same primary keys raises one thread of event delivery.
对应于主键等字段的变量在各个实体中重复出现。
Variables for fields such as primary keys were duplicated from entity to entity.
为此，它的输入和输出链接将不同的列标识为主键）。
To do so, its input and output links identify different columns as keys.
首先，根据业务对象中的主键将事件划分到一些分组中。
At first, the events are divided into some groups by primary keys in the business objects.
transactionId：事务的ID,bean的主键。
TransactionId: ID of the transaction; primary key of the bean.
产品常常只有很少几个共有的属性，比如主键、名称、短描述和长描述。
Products often share only a few attributes, such as a primary key, a name, a short description, and a long description.
EJB组件的主键由一个或多个持久性变量组成，对应于数据库中的主键。
The primary key of the EJB component, made up of one or more persisted variables, corresponds to the primary key in the database.
如果任一表缺乏主键，那么该表将被改变，以添加充当主键的ER影子列键。
If any of the tables are missing primary keys, those tables are altered to add er shadow column keys that act as primary keys.
对于创建外键，则需要另外一个具有主键的表，且该主键具有兼容的数据类型。
For foreign key creation, another table with a primary key with a compatible data type is required.
如我之前提到的那样，切分迫使您重视主键，因为您将需要亲自管理这些主键。
As I mentioned earlier, sharding forces you to be keenly aware of primary keys, as you'll manage them yourself.
如果在模板的实行中服务器上没有这些表和主键，则根据模板定义创建表和主键。
If the tables and primary keys do not exist on the server during the realization of the template, then the tables and primary keys are created according to the template definitions.
避免相同主键最安全的方法就是让应用程序(应用程序将管理切分系统)生成主键。
The safest way to prohibit duplicate primary keys is to have your application (which will be managing a sharded system anyway) generate keys.
应用推荐