Coding SQL UPDATE statements that operate against a set of predefined catalog views.
对针对一组预先定义的目录视图进行操作的SQLupdate语句进行编码。
A virtual catalog capability might leverage such a read-only pattern, as there's no need (or perhaps no ability) to update the preferred source.
虚拟目录功能可以利用这种只读的模式，因为它不需要(或者可能没有能力)更新首选信息源。
For example, in an eCommerce site, popular items might be retrieved thousands of times per hour, but the merchant might update its catalog only once a day.
例如，在一个eCommerce站点中，受欢迎的项目可能会有每小时上千次的检索量，而商家可能一天只更新目录一次。
The statistics Advisor will let you know when it's time to update those catalog statistics and generate the command to do so-all you have to do is click a button.
StatisticsAdvisor会指出什么时候应该更新编目统计数据并生成所需的命令；您只需单击一个按钮即可。
The statistics Advisor will let you know when it's time to update those catalog statistics and generate the command to do so-all you have to do is click a button.
StatisticsAdvisor会指出什么时候应该更新编目统计数据并生成所需的命令；您只需单击一个按钮即可。
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