mysql用户权限（别人的）

# 为用户授权
	# root建库
	create database blog;
	# root授权
	grant create,select,update,insert on blog.* to php_wr@localhost IDENTIFIED BY '123456';

# 删除用户
	delete from mysql . user where user = 'blog';
	flush privileges;

一、grant 普通数据用户，查询、插入、更新、删除 数据库中所有表数据的权利。

grant select on testdb.* to common_user@'%'
grant insert on testdb.* to common_user@'%'
grant update on testdb.* to common_user@'%'
grant delete on testdb.* to common_user@'%'
或者，用一条 MySQL 命令来替代：

grant select, insert, update, delete on testdb.* to common_user@'%'