例如，如果一个无效的请求值被拷贝到一个组件中，那么当前的视图就会重新显示，而有些阶段就可能不会执行。

For example, if an invalid request value were copied to a component, the current view would be redisplayed, and some of the phases might not execute.

youdao

如果曾用于生成特定页面的标记的某个门户资源的服务器端状态发生更改，需要重新生成此页面，因而缓存的视图会变为无效。

If the server side state of a portal resource that was once required to generate the markup for a specific page changes, this page needs to be regenerated, and thus the cached view becomes invalid.

youdao

修改该参数后，在创建EXISTING_CUSTOMER视图时，将收到一个SQL 20480 W警告，并且视图最初被标记为无效。

After changing this parameter, when you create the EXISTING_CUSTOMER view you will receive an SQL20480W warning and the view is initially marked as invalid.

youdao