MySQL User management

The two methods ：1、 Visual software operation ;2、SQL command

SQL command

• Create user

  create user  user name  identified by ' password ';
  

• Change Password

  // Change the current user password 
  set password=password(' New password ');
  // Change the specified user password 
  set password for  user name =password(' New password ');
  

• User rename

  rename user  Old user name  to  A new user name ;
  

• User authorization

  grant all privileges on *.* to  Database name ;// Grant full permissions to the tables in the database （ In addition to authorizing other users ,root Users can ）
  

• View permissions

  show grants for  Database name ;// View the permissions for the specified user 
  show grants for root@localhost;// View administrative user permissions 
  //root User permission setting source code ： GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' WITH GRANT OPTION
  

• Revoke authority

  revoke all privileges on *.* from  Database name ;// Revoke all authority