Under Owned Users, the Catalog Manager displays the users for which you have owner rights. SQL Studio allows you to view information about these users, and rename and delete users.
You need to have the required user authorizations.
For an explanation of user authorizations, see the Database users section of the Concepts of the Database System documentation.
· To display information about a user, select the user name, choose Catalog Manager ® Open Object Definition.
· To change a user name, select it and choose Catalog Manager ®Rename Object.
· To delete a user, select the user name, and choose Catalog Manager® Drop Object.