![]() The full syntax for GRANT and REVOKE are listed in the documentation, but the following examples will give you an idea of how the privileges can be used at different levels. Some tools, like MySQL Workbench, allow you to model roles, but ultimately these are implemented using direct grants on users. MySQL does not support roles in the same sense as Oracle roles. If you have the same user defined for multiple hosts, remember to drop all of them if required.Īlternatively, just delete all users with the same user name.ĭELETE FROM er WHERE user = 'adminuser' Users are removed using the DROP USER command. The RENAME USER comment, as the name suggests, renames a user. The ALTER USER command can be used to expire a password. SET PASSWORD FOR = PASSWORD('MyPassword2') UPDATE user SET password = PASSWORD('MyPassword2') WHERE user = 'adminuser' Īlternatively, the SET PASSWORD command can be used to reset a users password. For example, when we have the same user name defined against multiple hosts, we can update the passwords for all those users in a single step. MySQL allows DML to be run directly on the "er" table, so you can make changes directly. There are several ways to modify an existing user. GRANT USAGE ON *.* TO IDENTIFIED BY 'MyPassword1' Using GRANT USAGE creates the user, but grants it no privileges. ![]() MySQL also allows you to insert directly into the "er" table, but it is better to stick with the main commands.Īnother alternative is to create using the GRANT command. Not surprisingly, if you want to lock down a user, so it can only be accessed from a single PC or server, specify that machine name or IP address in the user creation. Notice the FLUSH PRIVILEGES command, which reloads the privilege information from the relevant tables in the "mysql" schema. Mysql> SELECT host, user FROM er WHERE user = 'adminuser' We have in fact created two users, one for local access from the server and one for remote access. GRANT ALL PRIVILEGES ON *.* TO WITH GRANT OPTION As a result, if you want to create new admin user on the database, you may do something like this.ĬREATE USER IDENTIFIED BY 'MyPassword1' If the host is not supplied, a host of '%' is used, meaning any host other than localhost. When creating a new user, the CREATE USER command expects both a username and host. This article provides a quick guide to creating users and managing permissions for those users in MySQL. Home » Articles » Mysql » Here MySQL : Users and Permissions
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