SQL索引

http://blog.csdn.net/dinglang_2009/article/details/5951428

http://blog.csdn.net/qianling3439/article/details/2578057

http://www.cnblogs.com/pkuoliver/archive/2011/08/17/mass-data-topic-7-index-and-optimize.html

http://www.cnblogs.com/tuyile006/archive/2007/08/22/865933.html

http://msdn.microsoft.com/zh-cn/library/ms190457%28v=sql.105%29.aspx

http://www.cnblogs.com/guojin705/archive/2011/06/21/2086429.html