The generated code provides notification , referential integrity , and customizable persistence to xmi 生成的代码还提供通知、参照完整性和可定制的xmi持久性。
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。
Entity integrity constraints , referential integrity constraints , and user - defined most intergrity constraints of relational database were all preserved after the conversion 转换过程可保留关系数据库的实体完整性约束、参照完整性约束和绝大部分的用户自定义完整性约束。
The update and delete buttons use exception handlers to display the error message if something goes wrong such as referential integrity violations when deleting a record 如果发生错误(例如删除记录时违反了参照完整性) , update和delete按钮则使用异常处理程序来显示出错消息。
The main areas of focus are : generation of models that support customization , notification , referential integrity , and other essential features ; generation of customizable model editors ; and default serialization 其主要关注的领域是:生成模型时支持定制、通知、参照完整性以及其他基本特性;生成可定制的模型编辑器;默认的序列化。
Our third strategy one table per concrete class has some mapping limitations , and the underlying data model can t use referential integrity , meaning that you re not using the relational database engine to its full potential 第三个策略(每个具体类一个表)有一些映射限制,而底层数据模型不能使用参照完整性,这意味着您不能发挥关系数据库引擎的所有潜力。
According to the charactar of bank , the refer integrality of database is designed , the integrity of affair is developed and the sql is optimized . in the last research probe into the sql attacking and give some advice of security 针对银行业务的特点,课题在系统开发中重点对数据库参照完整性设计,并进行了事务的完整性开发和sql语句的优化工作。另外在数据库安全方面,课题研究了sql注入式进攻的原理,并提出了一些防范的方法。
In the essay , discussions are focused on the transparency of database linkage and location , error management in remote control , treatment of suspending matters , referential integrity constraint , database access security and inquiry optimization 文中,对oracle分布式数据库系统设计与实现中的数据库链接与位置透明性、远程过程中错误的管理、悬而未决事务的处理、参照完整性约束、数据库访问的安全性以及查询优化几个部分重点进行了探索。