IBM MainFrame Interview Question:

WHY LRECL NEEDS TO BE 4 EXTRA THEN THE COBOL FILE LENGTH & WHAT IT CONTAIN IN THAT LENGTH?

Submitted by: Administrator

First thing is we can see this kind of differece only in VB
files not in fixed block files.

LRECL of VB file will contain the maximum record length of
a file + 4 bytes RDW(Record Descriptor Word) field which
gives the length of the record as the file contains
variable record lengths.

Example : if we have EMP-FILE VB file which contains 80
THRU 100 CHARECTERS

So the LRECL of this file is going to be 100+4 which is 104
bytes.
Submitted by: Administrator