    CREATE [ OR REPLACE ] PROCEDURE [ schema. ]procedure
       [ (argument [ { IN | OUT | IN OUT } ]
                   [ NOCOPY ]
                   datatype [ DEFAULT expr ]
           [, argument [ { IN | OUT | IN OUT } ]
                       [ NOCOPY ]
                       datatype [ DEFAULT expr ]
           ]...
         )
       ]
       [ invoker_rights_clause ]
       { IS | AS }
       { pl/sql_subprogram_body | call_spec } ;