创建数据库，用户并授权

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1.创建数据库CW(表空间，Schema)
CREATE database CW;

2.创建用户
2.1.创建本地用户cw1
CREATE USER cw1@'localhost' IDENTIFIED BY 'pwd1';
2.2.创建网络远程访问用户cw2
CREATE USER cw2@'%' IDENTIFIED BY 'pwd2';

3.修改密码
set pwssword for 'cw1'@'localhost' = password('new1');
4.授权
4.1.cw1授权为管理员DBA
GRANT ALL PRIVILEGES ON CW.* TO cw1;
4.2.cw2整个数据库的读权限
GRANT SELECT ON CW.* TO 'cw2'@'%' IDENTIFIED BY 'pwd2';