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We know that we face abend when we try to read an empty vsam file in a cobol program, some file status 35 comes.

We generally would place a low value record (null record as we refer) to overcome this problem.

But I fail to understand what could be the logic behind this restriction.

The only thing that I could think of, is that if vsam is empty then we do not have any value for the key and thus is not readable, but when we put a null record then the first record can be read. Please let me know if you agree with this.


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