http://blog.csdn.net/nanchuan/article/details/5778330
http://www.360doc.com/content/14/0915/14/16685697_409649131.shtml
http://www.cnblogs.com/wuhuacong/archive/2010/01/25/1655916.html
http://www.alixixi.com/Dev/DB/MYSQL/2007/2007091974202.html
http://gundumw100.iteye.com/blog/1331258
http://www.haodaima.net/art/1317266
原文：http://www.cnblogs.com/louvens/p/4187605.html