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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