role_usage_grants
   The view role_usage_grants identifies
   USAGE privileges granted on various kinds of
   objects where the grantor or grantee is a currently enabled role.
   Further information can be found under
   usage_privileges.  The only effective difference
   between this view and usage_privileges is that
   this view omits objects that have been made accessible to the
   current user by way of a grant to PUBLIC.
  
Table 36.37. role_usage_grants Columns
| Column Type Description | 
|---|
| 
        The name of the role that granted the privilege | 
| 
        The name of the role that the privilege was granted to | 
| 
        Name of the database containing the object (always the current database) | 
| 
        Name of the schema containing the object, if applicable, else an empty string | 
| 
        Name of the object | 
| 
        
        | 
| 
        
       Always  | 
| 
        
        |