MySQL授权以及状态查询

MySQL授权以及状态查询

MySQL授权以及状态查询

CREATE DATABASE odi; -- 创建ODI数据库
GRANT ALL PRIVILEGES ON *.* TO odi@'%' IDENTIFIED BY 'odipasswd'; -- 远程授权；
FLUSH PRIVILEGES; -- 刷新授权表
DELETE FROM USER WHERE USER="odi"; -- 删除该用户授权
CREATE DATABASE allen;

GRANT ALL PRIVILEGES ON test.* TO odi@'%' IDENTIFIED BY 'odipasswd'; -- 远程授权
GRANT ALL PRIVILEGES ON test TO odi@'%' IDENTIFIED BY 'odipasswd'; -- 远程授权
GRANT ALL PRIVILEGES ON phplampDB.* TO phplamp@localhost IDENTIFIED BY '1234';

-- grant 权限 on 数据库名.表名 用户@登录主机 identified by "用户密码";
-- grant 权限 on 数据库名.表名 用户@登录主机 identified by "用户密码";
-- select host,user,password from user;
-- update user set host = ’%’ where user = ’fang’;

CREATE DATABASE ccc;
GRANT ALL PRIVILEGES ON ccc.* TO ccc@'%' IDENTIFIED BY 'cccpasswd'; -- 远程授权；
FLUSH PRIVILEGES; -- 刷新授权表

-- 新建用户
INSERT INTO mysql.user(HOST,USER,PASSWORD) VALUES("%","testdb",PASSWORD("testpasswd"));
-- 创建新数据库
CREATE DATABASE testdb;
-- 授权test用户拥有testDB数据库的所有权限（某个数据库的所有权限）
GRANT ALL PRIVILEGES ON testdb.* TO test@localhost IDENTIFIED BY 'testpasswd';
-- 授权test用户拥有所有数据库的某些权限
GRANT SELECT,DELETE,UPDATE,CREATE,DROP ON *.* TO test@"%" IDENTIFIED BY "1234";
-- 删除用户
DELETE FROM USER WHERE USER='test' AND HOST='localhost';
FLUSH PRIVILEGES;
DROP DATABASE testDB; //删除用户的数据库
-- 删除账户及权限：
DROP USER 用户名@'%';
DROP USER 用户名@ localhost;

-- 修改某一个用户的密码
UPDATE mysql.user SET PASSWORD=PASSWORD('新密码') WHERE USER="test" AND HOST="localhost";
FLUSH PRIVILEGES;

-- 列出所有数据库
SHOW DATABASES;
-- 切换数据库
USE database_name;
-- 列出所有表
SHOW TABLES;
-- 显示表结构
DESCRIBE tables_name;
-- 删除数据库
DROP DATABASE database_name;
-- 删除数据表
DROP TABLE tables_name;