(a) Not if the record is defined as fixed length RECSZ=(250,250) -
because it is then physically written as 250 bytes in the CI and its RDF
will have 250 as its length. But you could define it as variable length.
(b) You can read only the first 150 bytes of the record by accessing it
directly in the buffer. For that, you should specify OPTCD=(...,LOC,...)
instead of the default OPTCD=(...,MVE,...) in your RPL. VSAM will then
return the address of the record in the CI buffer (instead of the record
itself) in your RPL's specified AREA. Load this record address into a
register (e.g. 'L R4,AREA') and you can then map your 150 or 200 byte
DSECT over the physical 250 byte record with a "USING <whatever
DSECT>,R4". (Note: This might need some tweaking before it works.)
Ron Thomas wrote:
I needed to know is there any thing we can do for this file so that doesn't write
anything beyond 150 bytes , so that the length of the record read will be <= 150
Thanks
Ron T
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