Compaq COBOL AAQ2G1FTK - Manual (Page 564)

Compaq COBOL for OpenVMS VAX and Compaq COBOL Compatibility and Migration
B.11 DBMS Support
You may also receive the following general diagnostic message when you attempt
to compile a program (on Tru64 UNIX) that contains variables defined in your
Oracle DBMS sub-schema:
cobol: Severe: . . . Undefined name
B.11.2 Multistream DBMS DML
With Compaq COBOL, when you use multistream Oracle DBMS DML, you must
access different schemas or streams from separate source files.
B–30 Compaq COBOL for OpenVMS VAX and Compaq COBOL Compatibility and Migration