这样就保证了表间的引用完整性。
主键、引用完整性和检查约束。
元素关系的引用完整性
这个表使用引用完整性约束确保数据的有效性。
This table USES referential integrity constraints to ensure data validity.
比如，复杂的数据关系要求有完全的引用完整性限制。
For instance, complex data relationships would require full referential integrity enforcement.
不要包括可定义声明引用完整性约束的子句。
Do not include any clauses defining declarative referential integrity constraints.
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。
The data volumes in data warehouse databases make traditional referential integrity constraints too costly.
说明强制引用完整性的要求以及对数据库用户的影响。
Describes requirements for enforcing referential integrity and the effect this has on database users.
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。
It is also a sound choice if you want to use database referential integrity to enforce associations.
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。
If one document contains the authoritative data that other documents refer to, it is more difficult to maintain referential integrity.
创建关系时，默认情况下将强制表与表之间的引用完整性。
Referential integrity between tables is enforced by default when you create a relationship.
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。
This referential integrity can be checked in one or both directions depending on the project goal.
复制表、数据、存储过程、引用完整性约束、安全性和索引。
You can copy tables, data, stored procedures, referential integrity constraints, security, and indexes.
复制表、数据、存储过程、引用完整性约束、安全性和索引。
You can transfer tables, data, stored procedures, referential integrity constraints, security, and indexes.
复制表、数据、存储过程、引用完整性约束、安全性和索引。
Copy tables, data, stored procedures, referential integrity constraints, security, and indexes.
复制表、数据、存储过程、引用完整性约束、安全性和索引。
Transfer tables, data, stored procedures, referential integrity constraints, security, and indexes.
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)。
Figure 4 depicts the referential integrity (foreign key relationship) shown by a UML association between the tables.
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 EJB container is important for maintaining the referential integrity of all entity bean relationships.
可以复制表、数据、存储过程、引用完整性约束、安全性和索引。
You can copy tables, data, stored procedures, referential integrity constraints, security, and indexes.
可以传输表、数据、存储过程、引用完整性约束、安全性和索引。
You can transfer tables, data, stored procedures, referential integrity constraints, security, and indexes.
可以复制表、数据、存储过程、引用完整性约束、安全性和索引。
You can transfer tables, data, stored procedures, referential integrity constraints, security, and indexes.
可以传输表、数据、存储过程、引用完整性约束、安全性和索引。
You can copy tables, data, stored procedures, referential integrity constraints, security, and indexes.
可以复制表、数据、存储过程、引用完整性约束、安全性和索引。
Copy tables, data, stored procedures, referential integrity constraints, security, and indexes.
可以传输表、数据、存储过程、引用完整性约束、安全性和索引。
Transfer tables, data, stored procedures, referential integrity constraints, security, and indexes.
执行任何关系的语义或者两对象间关系的引用完整性不需要CM IS知识库。
CMIS repositories are not required to enforce any semantics of relationships or enforce referential integrity between the two objects of a relationship.
在转换过程中保证了数据的实体完整性、域完整性以及引用完整性。
In the conversion process, it ensures the entity integrity of the data, domain integrity and referential integrity.
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。
To illustrate the need for maintaining referential integrity via the order database operations extension, consider an example.
现在创建两个表，Customer和Orders，以及表之间的一个引用完整性。
Now create two tables, Customer and Orders, and a referential integrity between the tables.
关系分析产生一个详细的输出，显示键标识符的引用完整性和域的一致性(或冗余)。
The Relationship Analysis results in a detailed output showing the referential integrity of key identifiers and the consistency (or redundancy) of domains. It should answer the following questions.
不能使用诸如引用完整性这样的数据库特性，也不能依赖于工具来基于列的名称发现这些关系。
You can't use database features such as referential integrity, and you can't rely on tools to discover the relationships based on the names of your columns.
应用推荐