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。

Referential integrity for element relationships

元素关系的引用完整性

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。

Primary key, referential integrity, and check constraints.

主键、引用完整性和检查约束。

And it is obviously referential to Vermeer's "The Astronomer."

对于弗米尔的“天文学家，有明显的参考价值。”

However, the referential integrity would not have been enforced.

不过，参照完整性将得不到保证。

Critics complain that Obama's speeches are too self-referential.

批评者抱怨说奥巴马的讲话太过于自恋。

Self-referential feeds that help to ease the subscription process.

自参考(self - referential)提要(feed)有助于简化订阅过程。

The generated code provides notification, and referential integrity.

生成的代码还提供通知、参照完整性和可定制的 XMI 持久性。

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。

This pattern is often used for MDM systems that are used mainly for referential purposes.

主要用于引用的 MDM 系统常常使用此???

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。

Triggers, unlike referential and check constraints, can even be used to update other tables.

触发器并不像参照完整性约束和检查约束那样，我们甚至可以使用对其他表来进行更新。

For instance, complex data relationships would require full referential integrity enforcement.

比如，复杂的数据关系要求有完全的引用完整性限制。

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。

In that case, the primary table should be populated first to maintain the referential constraint.

在这种情况下，应该首先填充主表，以保持引用约束。

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。

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。

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。