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。
It can solve data tracking and data integrity constraints to use trigger in teaching management systems.
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。
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.
ActiveRecord在使用参考完整性约束的某些场合也会出现问题，因为某些类型的关联可能连接到多个数据库表。
ActiveRecord also has trouble in some cases with referential integrity constraints because some types of associations might connect to more than one database table.
GIS中事务约束规则对于保证数据库更新时数据的完整性和一致性具有重要的意义。
The transaction constraint rules are important for preserving the data integrity and consistency when the database is updated in a GIS.
该文提出了一类数据库系统所特有的隐通道一利用引用完整性约束传送信息的隐通道，分析了它们的带宽，并提出了处理这类隐通道的方法。
This paper presents a class of specific covert channels in database system-the covert channel using referential integrity. We compute their bandwidth and propose the methods to handle them.
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。
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。
In the creation of a database, a data model and integrity constraints can create certainty in the structure and content of the data.
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