mysql if / case / limit / join / 数据类型 、oracle decode 及其它sql对比

mysql之sql逻辑查询顺序：              ★★★★★★★★★★★

http://blog.itpub.net/29510932/viewspace-1854056/

mysql之left join on                           ★★★★★★★★★★★

http://blog.itpub.net/29510932/viewspace-1777673/

oracle: to_date \ to_char :

http://www.cnblogs.com/cxxjohnson/p/4841314.html

mysql与oracle  SQL语言差异比较：

http://blog.youkuaiyun.com/world_2015/article/details/46049811

mysql中的数据类型介绍：

http://blog.youkuaiyun.com/anxpp/article/details/51284106

mysql：join语法：

http://www.cnblogs.com/BeginMan/p/3754322.html

mysql：limit

http://qimo601.iteye.com/blog/1634748

oracle：decode   vs   mysql：if /  case

http://www.cnblogs.com/chero/archive/2012/12/06/2804940.html

mysql： if

http://www.cnblogs.com/zr520/archive/2016/11/08/6044153.html

 

转载于:https://www.cnblogs.com/bj20170624/p/7605347.html