VSAM Files we can use in CICS like flat files. You already know that VSAM files can be concurrently accessed by Batch and Online. VSAM Record-Level Sharing (RLS). This explores a method for accessing VSAM files that gives multiple CICS address spaces concurrent READ/WRITE access to recoverable VSAM data sets.
On the other hand, below syntax help you how to access DASD files in CICS.
DASD Files in CICS
Syntax for READ:
EXEC CICS READ FILE(‘name’)
INTO(data-area)
RIDFLD(data-area)
LENGTH(data-value)
KEYLENGTH(data-value)
END-EXEC.
Syntax for WRITE:
EXEC CICS WRITE FILE(name)
FROM(data-area)
RIDFLD(data-area)
LENGTH(data-value)
KEYLENGTH(data-value)
END-EXEC.
Syntax for REWRITE:
EXEC CICS
REWRITE FILE (name)
FROM (data-area)
LENGTH (data-value)
END-EXEC.
Syntax for DELETE
EXEC CICS DELETE
FILE(‘name’)
RIDFLD(data-value)
END-EXEC.
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