union all在MySQL5.6下的表现
Part1:MySQL5.6.25
[rootHE1 ~]# MySQL -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.6.25-log MySQL Community Server (GPL)
Copyright (c) 2000,
说明：
操作系统：Windows Server 2003
MySQL版本：5.5.25
MySQL程序安装目录：D:\Program Files\MySQL\MySQL Server 5.5\
MySQL数据库目录：C:\Documents and Settings\All Users\Application Data\MySQL\MySQL Server 5.5\data
需求：修改MySQL数据库目录为D:\Program Files\MySQL\MySQL Server 5.5\data
