http://www.cnblogs.com/knowledgesea/p/3686105.html
http://blog.csdn.net/werm520/article/details/45482331
http://www.cnblogs.com/ziyiFly/archive/2008/12/24/1361380.html
http://www.jb51.net/article/39221.htm
http://www.kejixun.com/article/170216/282956.shtml
http://blog.csdn.net/rodjohnsondoctor/article/details/44541637
http://blog.csdn.net/dl0914791011/article/details/16939515
http://www.douban.com/note/345871485/
http://wenku.baidu.com/link?url=OaEo4aI1wZaEUlGJSjE8cnb4WUCpNf8DOy1PLEoVMz_VP2AVrJLNFwS3iBRsLonCBiBX8SnHE1iuqUOzY4QPA8GD74Y_iNPxsrt1WcQ4ZdS
http://www.jobui.com/mianshiti/it/shujuku/5773/
http://wenku.baidu.com/link?url=djQsHfloFwOyGXHWHBQs66o6bxeBemsrf2mzaXb3U-hP6dXPBTfsiHEt0ayBKUIYKfCdeomPCPzuB8tZkjB6k1gDRA21jQbgLO_ydDq2j-i
http://blog.csdn.net/u010796790/article/details/52194850
http://wenku.baidu.com/link?url=oSYD2Qswfl-fv8BeBjz5V4arnNuLiQ8KOaBB9qBKHCEO_C0QMSy8h236fMUc7UVkPJj84C1b0KqKxtulbnFtuq5F7cYS_6u1hDQXCNr6-m3
http://www.jfox.info/SQL-you-hua
原文：http://www.cnblogs.com/pureEve/p/6420634.html