how to verify Junk values in a field

swarnasuneel · New User Joined: 20 Apr 2012 Posts: 20 Location: chennai

In one of myFILE a field contains junk vlues. How we can test the field using JCL whether it contains JUNK values OR NOT.

Robert Sample · Posted: Mon Aug 27, 2012 7:54 pm

1. There is not such thing as "junk values" in data -- there may be valid data, and there may be invalid data, and there may data you did not expect, but the data came from somewhere and hence should not be considered "junk".

2. JCL executes programs. It cannot be used to determine what any data field has in it. If you wanted to use a utility like SORT or IDCAMS or IEBGENER, that MIGHT be possible. But just using JCL, all you can do is execute programs.

Anuj Dhawan · Posted: Mon Aug 27, 2012 7:56 pm

"Junk" is a concept/thought -- it's not a key word in any language. What is "junk" for your application, can be prefectly valid for other application. And for that matter, nothing is junk; you, as a programmer just don't want that data to be processed by your application.

Said all that, what is that you define as "junk", can you identify that?

Anuj Dhawan · Posted: Mon Aug 27, 2012 7:58 pm

Robert - I like it when my thoughts get similar to a Systems Programmer's way of thinking!

Robert Sample · Posted: Mon Aug 27, 2012 8:01 pm

Anuj -- that could be scary!

dick scherrer · Posted: Mon Aug 27, 2012 8:51 pm

Hello,

Phrzby Phil · Posted: Mon Aug 27, 2012 9:15 pm

Every bit setting is a valid binary number representation.

Bill O'Boyle · Posted: Mon Aug 27, 2012 10:41 pm

Please define "JUNK" (your interpretation)?