2015年12月4日
mysql 表连接
1、三个表连接SELECT * FROM stock320151203 as a , stock320151202 as b , stock320151201 as c WHERE a.id=b.id and a.id=c.id;两个表连接：SELECT * FROM stock320151203 ... Read More
posted @ 2015-12-04 12:35 welkinok Views(156) Comments(0) Diggs(0) Edit