The Object Owner

The user who created a database object becomes its owner.Only the owner of an object and users with administrator privileges in the database, including the database owner, can alter or drop the database object.

Administrators, the database owner or the object owner can grant privileges to and revoke them from other users, including privileges to grant privileges to other users.The process of granting and revoking SQL privileges is implemented with two statements, GRANT and REVOKE.