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.
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.
对于所有主键和外键的规范。
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.
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.
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.
find方法要求您知道主键和实际类的类型。
The find method requires you to know the primary key as well as the actual class type.
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.
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.
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.
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.
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.
主键列、外键列和索引上使用的列的数据类型。
Data type of primary key columns, foreign key columns, and columns used on indexes.
keys视图—允许定义主键、惟一键和外键。
Keys view a "Allows defining primary keys, unique keys, and foreign keys."
想要它成为表的主键，使用 @Id注释来声明。
You want this to be the primary key for your table, so use the @Id annotation to declare this.
如果找到匹配，searchd将返回一个主键数组。
If a match is made, searchd returns an array of primary keys.
您还可以在次表中建立外键，以链接主表中的主键。
You can also establish a foreign key in a secondary table to link with a primary key in a primary table.
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.
当然，如前所述，应用程序中的主键逻辑并不是很保险。
As noted previously, of course, the primary key logic found in the application isn't bulletproof.
表的主键和所有惟一索引都必须是相关分区键的超集。
The primary key and any unique index of the table must be a superset of the associated partitioning key.
同样，关系数据库中的行也是惟一的，它们由主键值标识。
Similarly, relational database rows are also unique, so long as they are identified by primary key values.
例如，在从主键序列表中检索并缓存下一批可用的键值时。
An example would be retrieving and caching the next available batch of keys from a primary key sequence table.
在访问数据库时，它还会利用同一主键执行join操作。
It will also make use of this same primary key to perform JOIN operations when accessing the database.
星型模式要求生成并适当使用事实表和维表的主键或外键。
The star schemas require the generation and proper use of primary or foreign keys for the fact and dimension tables.
应用推荐