When you do add an index to a table to cut the CPU cost and run time of a query, you want to get the most out of that new index as practically possible.
如果您的确要向一个表添加一个索引来削减查询的CPU成本和运行时间，您可能会想在实际情况允许的条件下尽可能多地利用那个新索引。
The problem with short boxes is that even though you can type out a long query, only a portion of the text will be visible at a time, making it difficult to review or edit what you've typed.
搜索框太短的问题是即便你可以输入较长的问题，你也只能一次看到文本的一部分，从而使得难于检查或编辑你输入的内容。
It is worth the time to figure out how to get query caching working for you.
花时间确定如何让查询缓存为你工作是值得的。
With such cache protocols, a cache server can query all the other servers at the same time to find out if they contain the needed data.
有了这些高速缓存协议，高速缓存服务器就可以同时查询所有其他服务器，以查看它们是否包含所需的数据。
By query score, company can get the useful market information in the shortest time, so as to work out correct decision.
通过账目查询，公司能在最短的时间内获得市场信息，从而制订相应的决策。
Issue the following query to find out if the standby database is performing redo apply or real-time apply. If the MRP0 or MRP process exists, then the standby database is applying redo.
通过如下查询找出备库是在重做应用还是实时应用，如果MRP0或者MRP进程存在，那么备库正在应用重做。
Issue the following query to find out if the standby database is performing redo apply or real-time apply. If the MRP0 or MRP process exists, then the standby database is applying redo.
通过如下查询找出备库是在重做应用还是实时应用，如果MRP0或者MRP进程存在，那么备库正在应用重做。
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