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when will come session device error?
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Answer / 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 |
Answer / katiyar
The Session and Device error occurs when program tries to
load data to display file (Subfile). The program should have
correct logic to load data from Database file to Subfile
using RRN(Relative Record Number). Then only data will be
loaded successfully to display file (subfile) else it will
be encountered with session and device error.
To prevent Session and Device error, One should understand
the Display file (Subfile) programming.
| Is This Answer Correct ? | 11 Yes | 3 No |
Answer / raj
1. If RRN is not incresing correctly
2. If sfldsp and sfldspctl are set on proparlly
3. In load all if records exceeds 9999 and even less than
zero
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / sahish
Check the records are write in sub file
write sfl
for each record
| Is This Answer Correct ? | 0 Yes | 1 No |
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