Creating many views, especially large ones, can become a performance issue due to the extra indexing required.
由于需要额外的索引，创建大量视图，尤其是创建大型视图，会导致性能问题。
A good technique is to time box these "extra requests." 4 Schedule a convenient five-minute meeting with your friend in which he or she explains the issue to the best of his or her ability.
一个好的技巧是对这些额外的要求进行时间限制 4 和你的朋友约定一个方便的五分钟会面，会面中他或她将尽他或她的能力解释所面临的情况。
It is offering an extra percentage point of interest to investors in its latest bond issue, should Jon Corzine, MF's chief executive, quit to take a government job before July 2013.
在其新近发行的债券中，针对2013年7月前的MF总裁乔恩克辛即将离职从政这一现实状况，MF为投资者们手中的债券追加了额外利率。
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