Creating Synonyms From COBOL File Descriptions

Synonyms define unique names (or aliases) for each file that is accessible from a server. Synonyms are useful because they hide location information and the identity of the underlying data source from client applications. They also provide support for extended metadata features of the server such as virtual fields and additional security mechanisms.

Using synonyms allows an object to be moved or renamed while allowing client applications to continue functioning without modification. The only modification required is a redefinition of the synonym on the server.

The CREATE SYNONYM command uses COBOL FD translation capabilities to translate the COBOL file definition into an internal metadata format from which a Master File is created.


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