这种高效支持您更新一个不可更新的视图。

This effectively allows you to update a non-updatable view.

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这些可更新的视图允许更新某些统计信息，从而研究假想数据库的性能，或者更新统计信息而不使用RUNSTATS实用程序。

These updatable views allow you to update certain statistical information to investigate the performance of a hypothetical database, or to update statistics without using the RUNSTATS utility.

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关于如何使用可更新编目视图来优化性能的讨论超出了本文的范围。

A more detailed discussion of how to use the updatable catalog views to optimize performance is beyond the scope of this article.

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