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Answer Posted / katiyar
As I mentioned above RRN (Relative Record Number) may be a
cause of "Session and Device Error". So In program code, at
display(EXFMT) subfile code, check the value of RRN. If is
is zero and you are making on the SFLDSP indicator *On or it
is un-conditional and doing display subfile. Then it will
give you the same error.So to avoid this situation you can
code in the way it mentioned below.
C If (RRN <= *Zeros)
C Eval *In32 = *OFF
C Else
C Eval *In32 = *ON
C EndIf
Where *In32 is SFLDSP indicator in Subfile code.
------------------OR-------------------
C If (RRN > Zeros)
C EXFMT SFLCTL (Subfile Control Display)
C EndIf
Both ways can be choose to avoid RRN related error.
==========================================================
Except the RRN, There are literally hundreds of other things
that can cause a "session or device error," and each has
exactly one "right" solution.For e.g. there may be chances
that you have not declared the keyword 'SFILE' i.e
SFILE(subfile rcdfmt name : RRN) while declaring
display(subfile) file in F-specs of your program. If so then
one can get the "session or device error".
Therefore, when you get a "session or device error," look at
the job log. In the job log will be a message that will
tell you exactly what the problem is. And also understand
all in better way, one should understand subfile programming
first.
| Is This Answer Correct ? | 14 Yes | 0 No |
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