It can solve data tracking and data integrity constraints to use trigger in teaching management systems.
在教学管理系统中应用触发器可以解决数据追踪和数据库完整性约束。
Support for validating XML data based on user-supplied schemas, which allows application developers and database administrators to enforce data integrity constraints for XML data stored in DB2.
支持基于用户提供的模式验证XML数据，这使得应用程序开发人员和数据库管理员可以对DB2中存储的 XML 数据实施数据完整性约束。
Because there is no error handling logic, you must rely on database constraints to ensure semantic integrity of the data.
因为没有错误处理逻辑，必须依靠数据库的限制，以确保数据的语义完整性。
On the other hand, you may choose not to use such constraints at all and rely on your application's code to manage its own data integrity.
另一方面，您可能选择根本不用这样的约束，而依靠应用程序的代码来管理自己的数据完整性。
Even though referential integrity and check constraints are very helpful during the ETL process to help detect data problems, implementing them on final data warehouse tables is not efficient.
在ETL过程中，即时参照完整性和检查约束极其有助于检测数据问题，在最终的数据仓库表中实现它们也不会高效。
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。
Even if the data models are defined appropriately and consistently, a lack of appropriate integrity constraints for data values can lead to quality and consistency issues.
即使恰当且一致地定义了数据模型，缺少恰当的数据值完整性约束可能会导致质量和一致性问题。
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。
Consistency: a transaction preserves all the invariant properties (such as integrity constraints) defined on the data.
一致性：事务保持数据上定义的所有不变的属性(如完整性约束)。
Validating XML (Nicholas Chase, developerWorks, August 2003): Validate files and documents to make sure that data fits integrity constraints.
验证XML（NicholasChase，developerWorks，2003 年8 月）：验证文件和文档以确保数据满足完整性约束。
By changing the isolation level, the J2EE developer or deployer can balance data integrity against performance constraints to performance tune the application.
通过修改隔离级别，J2EE开发人员或部署人员可以在性能的约束下平衡数据完整性，从而对应用程序进行调整。
But when you define ri constraints, keep in mind that there are rules in place to safeguard data integrity when DML operations are performed against related tables.
但是在您定义RI时，要记住，当对相关表执行dml操作时，需要一些规则来保护数据完整性。
The data violated the integrity constraints for one or more columns.
数据违反了一列或多列的完整性约束。
Design attribute domain integrity. Considerations include CHECK constraints, data types, and nullability.
设计域完整性属性。考虑CHECK约束，数据类型和是否非空。
Transfer tables, data, stored procedures, referential integrity constraints, security, and indexes. Specify the object (s) to transfer.
可以传输表、数据、存储过程、引用完整性约束、安全性和索引。请指定要传输的对象。
And through the relationship between constraints, transaction processing to ensure data integrity.
并通过关系约束、事务处置来保证数据的完全性。
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.
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。
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。
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。
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。
Constraints are rules that help preserve the integrity of data in a table.
约束是有助于保持表中数据的完整性的规则。
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.
可以复制表、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.
可以传输表、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.
可以复制表、数据、存储过程、引用完整性约束、安全性和索引。
In the creation of a database, a data model and integrity constraints can create certainty in the structure and content of the data.
在创建数据库时，数据模型和完整性约束能够在数据的结构和内容上形成确定性。
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