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When you specified V for RECFM parameter, LRECL value is largest record in the file plus 4 bytes. These four bytes contain the actual length of each variable length record in the file
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Joined: 10 Nov 2016 Posts: 1 Location: Sacramento, CA
Posted: Thu Nov 10, 2016 4:10 am Post subject:
The STARTBR command only affects the dataset pointer. It's used specifically to set the dataset pointer just before a specific record based on the key parameters.
The READNEXT/READPREV commands retrieve the record either after or before the pointer based on the command. After a successful read the dataset pointer is moved 1 record in that direction (if possible). If the pointer is at the beginning of the dataset and a READPREV is issued it will return and EOF response.
Once you are done reading the file in this manner your must issue a ENDBR, otherwise you cannot do any new STARTBR or dynamic reads.
This is the only way to do sequential reads within the CICS environment.
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