Questions about the first several bytes of variable file

william51 · New User Joined: 06 Jul 2006 Posts: 31

1.
As i know,normally,variable file shoud has some special position to represent the length of the record.But sometimes i find that there are not this special
fields in variable files,why should this happen?

2.
There shoud have 4 bytes in variable qsam file,the first 2 bytes are length,what does the 3rd and 4th bytes mean?

3.
For VSAM file,don't like QSAM file,there are noly 2 special bytes,is that right?

Thanks

ofer71 · Posted: Thu Aug 17, 2006 10:54 am

If you want to know more about RDW (Record Descriptor Word), you can find it in the fine manual.

O.