当档案系统终止服务时，虽然必须能继续读取档案，但不得再增加新的档案。
When a records system is discontinued or decommissioned, no further records may be added to the system, although they should continue to be accessible.
如果允许线程中的未经处理的异常正常继续，直到操作系统终止程序为止，将会在开发和测试过程中暴露此问题。
Allowing unhandled exceptions in threads to proceed naturally, until the operating system terminates the program, exposes such problems during development and testing.
通过给出触发器的形式描述，对级联触发器的终止性进行详细探讨，并分析了大型商用数据库系统终止级联触发器的方法。
Describing through the formal of triggers, the termination of cascaded triggers is discussed, and the method of the termination cascaded triggers in commercial database system is analysed.
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