Ron Thomas wrote:

>We have a KSDS VSAM File which is of record length in production as 200 bytes 
>and we modified the VSAM file to 250  record length . We then copied old 
>records to the new records.

What is the VSAM Dataset structure? Is it indexed? With what utility/program 
did you used to do the copywork?


>There is a online screen which updates the file and once that happen the file 
>is updated with low values after 200 bytes. 

I would recommend that you fill up the last part with some values during the 
creation/population of the VSAM dataset, not during subsequent usage in an 
application.


>There is assembler program when it reads it is failing in get call.

Well, you will have to modify the program to handle the longer records.


>So is there a way by which from the online we can limit the length of the file 
>to 200 bytes . Please do share thoughts on this?

What is 'online' and 'online screen'? It tells nothing to me. Is it a CICS 
application, TSO application, Web page hosted by some HTTP server?

In what language is that application written. On what z/OS version are you? 

Alternatively, copy the first 200 bytes of each records to something else and 
have the thing read that dataset with the shorter records.

Best of all advice: refer the problem to the developer. If you modify a 
dataset's structure, you need to modify all programs using it.

I have a question: Why enlarge the records if you're not using it by padding it 
with low values anyways?

Groete / Greetings
Elardus Engelbrecht

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