IBM Mainframe Forum

Posted: **Thu Nov 06, 2014 7:56 pm**

Hi All,

I have a control card like the below:
Record length of both input and output file is 620 and it is fixed format.

when i try copy the record from input file using overlay statemnt, it is working fine for 01 type record.

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SORT FIELDS=COPY
OUTREC IFTHEN=(WHEN=(81,2,CH,EQ,C'01'),OVERLAY=(1:1,181,
182,21,203,21,224,21,
245,21,266,21,287,21,
308,21,329,21,350,21,
371,21,392,21,413,21,
434,21,455,21,476,145))

Input file:
6----+----7----+----8----+----9----+----0----+----1----+-
************** Top of Data ******************************
5165550290H V N5165550290BAV N

Output file:
6----+----7----+----8----+----9----+----0----+----1----
************** Top of Data ****************************
5165550290H V N5165550290BAV N

But i want to insert a space inbetween few fields(i mentioned as X from the below control card)
For example, In the ouptput file, i need a space in 204th position and 205th position should contains
the value from the input file(203 to 21 length)..

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SORT FIELDS=COPY
OUTREC IFTHEN=(WHEN=(81,2,CH,EQ,C'01'),OVERLAY=(1:1,181,182:X,
182,21,204:X,203,21,226:X,224,21,248:X,
245,21,270:X,266,21,292:X,287,21,314:X,
308,21,336:X,329,21,358:X,350,21,380:X,
371,21,402:X,392,21,424:X,413,21,446:X,
434,21,468:X,455,21,490:X,476,145))

When i try with the below control card i am getting unexpected result. I have also tried with C' ' but invain. So can any one please correct me on this.

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output:
6----+----7----+----8----+----9----+----0----+----1----+-
************** Top of Data ******************************
5165550290H V N5165550290B B N

Expected output
6----+----7----+----8----+----9----+----0----+----1----+-
************** Top of Data ******************************
5165550290H V N5165550290B AV N

Thanks
Jegan.

Posted: **Thu Nov 06, 2014 8:13 pm**

With OVERLAY, you can't insert, you can only overwrite.

OVERLAY operates on the current (version) of the input record. BUILD creates a new current record, every time it is used. So BUILD can refer to positions which have not been destroyed by the result of the BUILD. If OVERLAY is used on a position which has already been changed earlier in the OVERLAY, then that changed data is what you get.

For instance, you have 182:X,182,21. That is always going to replace your data by one leading blank. On a BUILD, 182:X,182,21 would work as you expect, although unless you wanted blanks before the X, you'd probably not need to bother having the 182: anyway.

If you want to "insert" a couple of blanks, how are you going to get around the fact that that will make the record longer?

Posted: **Fri Nov 07, 2014 11:33 am**

Many thanks for the clarification. I tried replacing with Build statement and got the expected output.

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