Ownership-based access control within Db2
Object ownership carries with it a set of related privileges on the object. Db2 provides separate controls for creation and ownership of objects.
If you want to prevent users from obtaining implicit privileges from object ownership, you can make a Db2 role the owner of the object. To do this, you need to create the object in a trusted context that is defined with the ROLE AS OBJECT OWNER AND QUALIFIER clause.