mysql添加删除用户、授权、修改密码等

//登录MYSQL
@>mysql -u root -p
@>密码
//创建用户
mysql> mysql> insert into mysql.user(Host,User,Password,ssl_cipher,x509_issuer,x509_sub
ject) values("localhost","pppadmin",password("passwd"),'','','');

mysql>exit;
@>mysql -u phplamp -p
@>输入密码
mysql>登录成功

//登录MYSQL（有ROOT权限）。我里我以ROOT身份登录.
@>mysql -u root -p
@>密码
//首先为用户创建一个数据库(phplampDB)
mysql>create database phplampDB;
//授权phplamp用户拥有phplamp数据库的所有权限。
>grant all privileges on phplampDB.* to phplamp@localhost identified by '1234';
//刷新系统权限表
mysql>flush privileges;
mysql>其它操作
/*
如果想指定部分权限给一用户，可以这样来写:
mysql>grant select,update on phplampDB.* to phplamp@localhost identified by '1234';
//刷新系统权限表。
mysql>flush privileges;
*/

@>mysql -u root -p
@>密码
mysql>Delete FROM user Where User="phplamp" and Host="localhost";
mysql>flush privileges;
//删除用户的数据库
mysql>drop database phplampDB;

@>mysql -u root -p
@>密码
mysql>update mysql.user set password=password('新密码') where User="phplamp" and Host="localhost";
mysql>flush privileges;

mysql>show database;

mysql>use '数据库名';

mysql>show tables;

mysql>describe 表名;

mysql>drop database 数据库名;
mysql>drop table 数据表名;