MySQL高级(进阶)SQL语句

MySQL高级(进阶)SQL语句

一、实例准备—制表1. 表1(商店区域表)create table location (region char(20),store_name char(20));insert into location values(‘North’,’Beijing’);Query OK, 1 row affected (0.00 sec)mysql> insert into location values(‘Eaet’,’shanghai...