Creates the temporary definition of a DATATRIEVE domain.

       The following sections explain how to declare domains for
       CDD$DATABASE objects, Oracle CODASYL DBMS databases, network
       domains based on domains residing at other DECnet[TM] nodes,
       domains based on relational databases, domains based on single
       RMS files, and views based on one or more domains.

       Format

         To declare a CDD$DATABASE domain, use the following syntax:

         DECLARE DOMAIN  domain-name  [USING]  database-name

             [FORM [IS] form-name [IN] file-name [USING exchange-rec]]
             [WITH]  RELATIONSHIPS ;

         To declare a Oracle CODASYL DBMS domain, use the following
         syntax:

         DECLARE DOMAIN  domain-name  [USING]  record-name

             [OF]  [DATABASE]  database-path-name

             [FORM [IS] form-name [IN] file-name [USING exchange-rec]] ;

         To declare a network domain, use the following syntax:

         DECLARE DOMAIN  domain-name [USING] remote-path-name AT
                        node-spec

             [FORM  [IS]  form-name  [IN] file-name [USING exchange-rec]]

             [[WITH] RELATIONSHIPS] ;

         To declare a relational domain, use the following syntax:

         DECLARE DOMAIN  domain-name [USING] relation-name

             [OF]  [DATABASE]  database-path-name

             [FORM [IS] form-name [IN] file-name [USING exchange-rec]]

             [[WITH] RELATIONSHIPS] ;

         To declare a domain based on a RMS file, use the following
         syntax:

         DECLARE DOMAIN  domain-name [USING] record-path-name ON
 file-spec

             [FORM [IS] form-name [IN] file-name [USING exchange-rec]]

             [[WITH]  RELATIONSHIPS] ;

       To declare a view domain, use the following syntax:

       DECLARE DOMAIN view-name OF domain-name-1 [,...][BY   ]
               [USING]

           level-number-1  field-name-1    OCCURS FOR rse-1.

           level-number-2  field-name-2  { OCCURS FOR rse-n        } .
             { FROM domain-name-n }

             .         .                   .
             .         .                   .
             .         .                   .

           [FORM [IS] form-name [IN] file-name [USING exchange-rec]]

           [[WITH] RELATIONSHIPS] ;