Only a System Administrator can grant permission to use the create database command. The user that receives create database permission must also be a valid user of the master database because all databases are created while using master.
In many installations, the System Administrator maintains a monopoly on create database permission to centralize control of database placement and database device space allocation. In these situations, a System Administrator creates new databases on behalf of other users, and then transfers ownership to the appropriate user.
To create a database that is to be owned by another user:
Issue the create database command in the master database.
Switch to the new database with the use command.
Execute sp_changedbowner.
