Types of privileges:

       db-privs
       table-privs
       column-privs
       module-privs
       ext-routine-privs
       sequence-privs

    Specifies the list of privileges you want to remove from an
    existing ACL entry. The operations permitted by a given privilege
    keyword differ, depending on whether it was granted for a
    database, table, column, module, external routine, or sequence.
    The Privileges table in the GRANT statement help topic lists
    the privilege keywords and their meanings for databases, tables,
    modules, columns, external routines, and sequences.