然而，这个注册表变量只能在实例启动时生效，所以，如果您想修改DB2在mdc表上的删除操作方面的行为，必须重新启动实例。

However, this registry variable can only take effect on instance startup, so if you want to alter the behavior of DB2 with respect to deletions on MDC tables, you have to restart the instance.

youdao

此行为将减少启动项目所需的时间，因为您永远都不需要等待它重新编译。

This behavior reduces the amount of time required to launch your project because you never have to wait for it to recompile.

youdao

通过此行为，可以启动灾难数据中心，但无需首先完成安装更改的实施。

This behavior will enable you to bring up your disaster data center without requiring that you first complete the rollout of the install change.

youdao