Users

For most databases, the bulk of permission management should be performed using groups, rather than by assigning permissions to individual users one at a time. However, as a group is simply a user ID with special properties, you should read and understand this section before moving on to the discussion of managing groups.

 Why you should use individual user IDs
 See also

New user creation
Creating a user
Passwords
Changing a password
Setting user and group options
Deleting a user from the database
Users and permissions for system views