标签:pre 注意 data localhost create table 用户 删除用户 需要
https://www.cnblogs.com/sos-blue/p/6852945.html
CREATE USER ‘username‘@‘host‘ IDENTIFIED BY ‘password‘;
%
CREATE USER ‘dog‘@‘localhost‘ IDENTIFIED BY ‘123456‘;
CREATE USER ‘pig‘@‘192.168.1.101_‘ IDENDIFIED BY ‘123456‘;
CREATE USER ‘pig‘@‘%‘ IDENTIFIED BY ‘123456‘;
CREATE USER ‘pig‘@‘%‘ IDENTIFIED BY ‘‘;
CREATE USER ‘pig‘@‘%‘;
GRANT privileges ON databasename.tablename TO ‘username‘@‘host‘
SELECT
,INSERT
,UPDATE
等,如果要授予所的权限则使用ALL
*
表示,如*.*
GRANT SELECT, INSERT ON test.user TO ‘pig‘@‘%‘;
GRANT ALL ON *.* TO ‘pig‘@‘%‘;
GRANT ALL ON maindataplus.* TO ‘pig‘@‘%‘;
用以上命令授权的用户不能给其它用户授权,如果想让该用户可以授权,用以下命令:
GRANT privileges ON databasename.tablename TO ‘username‘@‘host‘ WITH GRANT OPTION;
SET PASSWORD FOR ‘username‘@‘host‘ = PASSWORD(‘newpassword‘);
如果是当前登陆用户用:
SET PASSWORD = PASSWORD("newpassword");
SET PASSWORD FOR ‘pig‘@‘%‘ = PASSWORD("123456");
REVOKE privilege ON databasename.tablename FROM ‘username‘@‘host‘;
privilege, databasename, tablename:同授权部分
REVOKE SELECT ON *.* FROM ‘pig‘@‘%‘;
假如你在给用户‘pig‘@‘%‘
授权的时候是这样的(或类似的):GRANT SELECT ON test.user TO ‘pig‘@‘%‘
,则在使用REVOKE SELECT ON *.* FROM ‘pig‘@‘%‘;
命令并不能撤销该用户对test数据库中user表的SELECT
操作。相反,如果授权使用的是GRANT SELECT ON *.* TO ‘pig‘@‘%‘;
则REVOKE SELECT ON test.user FROM ‘pig‘@‘%‘;
命令也不能撤销该用户对test数据库中user表的Select
权限。
具体信息可以用命令SHOW GRANTS FOR ‘pig‘@‘%‘;
查看。
DROP USER ‘username‘@‘host‘;
标签:pre 注意 data localhost create table 用户 删除用户 需要
原文地址:https://www.cnblogs.com/qiaoli0726/p/10166385.html