Account and Privilege Management in MySQL

User rights management
http://www.cnblogs.com/chenqionghe/p/4871355.html

mysql sql execution order
http://www.cnblogs.com/rollenholt/p/3776923.html

mysql composite index multi-column index leftmost Prefix principle
http://blog.csdn.net/zhanglu0223/article/details/8713149
http://www.nginx.cn/2347.htmlMaster-slave

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