There were no historical records of Homer, and no trustworthy biography of the man exists beyond a few self-referential hints embedded in the texts themselves.
除了作品中包含的一些自我参照的暗示之外，历史上没有关于荷马的记载，也没有该人的可靠传记。
Entering data and verifying referential integrity.
输入数据，并确认参照完整性。
That ensures referential integrity between the tables.
这样就保证了表间的引用完整性。
This table USES referential integrity constraints to ensure data validity.
这个表使用引用完整性约束确保数据的有效性。
It also defined the following set of informational referential constraints.
它还定义了以下一组引用约束。
Dealing with referential integrity between tables during template definition.
模板实现期间处理表之间的参照完整性。
Automatic generation of conditions and referential constraints on associations.
自动产生联合上的条件和引用约束。
Removing unproductive joins with informational check and referential constraints.
利用检查约束和引用约束删除无效连接。
Now create two tables, Customer and Orders, and a referential integrity between the tables.
现在创建两个表，Customer和Orders，以及表之间的一个引用完整性。
The next example shows how check and referential constraints are used in a more complex example.
接下来的例子展示了如何在更复杂的例子中使用检查约束和引用约束。
It is also a sound choice if you want to use database referential integrity to enforce associations.
如果你想用数据库的引用完整性来做关联，那它也是个合适的选择。
This referential integrity can be checked in one or both directions depending on the project goal.
取决于项目的目的，可以从一个方向或同时从两个方向检查引用完整性。
Collection-based object storage, allowing for referential querying where normalized data is required.
基于集合的对象存储，在需要规范化数据时允许参考查询。
The EJB container is important for maintaining the referential integrity of all entity bean relationships.
ejb容器对于维护所有实体bean关系的引用完整性来说是很重要的。
The data volumes in data warehouse databases make traditional referential integrity constraints too costly.
数据仓库中的数据量使得传统引用完整性约束的成本太高。
Figure 4 depicts the referential integrity (foreign key relationship) shown by a UML association between the tables.
图4描述了由一个表之间的UML关联所表示的引用完整性(外键关系)。
Ensure dependent tables in a referential integrity (ri) relationship have indexes that exactly match the foreign key.
确保参照完整性(referential integrity,ri)关系中的依赖表拥有与外键匹配的索引。
This implies that we should consider increasing the use of referential (real) questions, and of divergent questions in class.
这可以说明我们在课上，应该多使用参考(真实)型和发散型问题。
To illustrate the need for maintaining referential integrity via the order database operations extension, consider an example.
为了阐释通过对数据库操作进行排序来维持引用完整性的必要性，请考虑以下示例。
For more on MySQL referential integrity, please see the section on foreign keys constraints in the MySQL product documentation.
要深入了解MySQL参照完整性，请参考MySQL产品文档中关于外部关键字的部分。
This will not affect the referential integrity or primary-foreign key relationships between the tables in the membership database.
这不会影响到成员数据库中表格之间的主-外键关系。
This category of overhead includes CHECK constraint verification and foreign key constraint (referential integrity (ri)) verification.
这一类的开销包括检查约束验证和外键约束(参照完整性(RI))验证。
If one document contains the authoritative data that other documents refer to, it is more difficult to maintain referential integrity.
如果一个文档包含其他文档引用的可靠数据，就很难维护引用完整性。
Also, the Q Apply program does not drop referential integrity constraints on nicknames during the loading process and then restore them.
同样，在执行装入操作期间，QApply程序也不删除别名上的参照完整性约束，并在这之后恢复它们。
However, most databases handle referential integrity differently, and MySQL doesn't completely support it in many versions of the software.
不过多数数据库对引用完整性的处理方式不同，而且MySQL很多版本没有提供完整的支持。
It had good ANSI SQL support, referential integrity, and good performance as long as the number of concurrent accesses didn't grow too large.
它有很好的ANSISQL支持和引用完整性，并且只要并发用户的增长不太大它可以保持良好的性能。
It is interesting to observe that, whereas all display questions are convergent, referential questions may be either convergent or divergent.
我们发现一个有趣的现象，即尽管所有展示型问题都是聚合型问题，但是参考型问题可以使聚合也可以是发散的。
Jazz enforces referential integrity between an item and its helper objects, but not between items; i.e., dangling item references are allowed.
Jazz强制项与其Helper对象之间的引用完整性，但是不强制项之间的引用完整性；也就是说，悬空项引用是允许的。
If a class wants to associate with the super Payment class, the DB can't use referential integrity to enforce it; you have to use a trigger to do so.
如果一个类想和Payment超类关联，数据库无法使用引用完整性(referential integrity)来实现它；必须使用触发器来实现它。
If a class wants to associate with the super Payment class, the DB can't use referential integrity to enforce it; you have to use a trigger to do so.
如果一个类想和Payment超类关联，数据库无法使用引用完整性(referential integrity)来实现它；必须使用触发器来实现它。
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