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> From: Jim Essinger
>
> Joe,
>
> What are you looking for with subfiles and COBOL?

Jim, I'm basically just trying to get one to work.  I think I've figured out
most of the pieces, but I'm getting an "incorrect relative record number"
error.  Relevant bits:

FILE-CONTROL.
    SELECT WRKSTN ASSIGN TO WORKSTATION-DSPF003
        ORGANIZATION IS TRANSACTION
        ACCESS DYNAMIC RELATIVE KEY RRN
        FILE STATUS IS WS-STATS.

FILE SECTION.
FD  WRKSTN LABEL RECORDS ARE OMITTED.
01  WRKSTN-REC PIC X(1920).

WORKING-STORAGE SECTION.
01  WRKSTN-DATA.
    COPY DDS-ALL-FORMATS OF DSPF003.
77  WS-STATS            PIC XX            VALUE ZERO.
77  RRN                 PIC 9(2)          VALUE ZERO.

01  INDIC-AREA.
    05  IN03            PIC 1.
        88  CF3                           VALUE B"1".
    05  IN50            PIC 1.
        88  CLEAR-SUBFILE                 VALUE B"1".
        88  DISPLAY-SUBFILE               VALUE B"0".

INIT-SUBFILE.
    SET CLEAR-SUBFILE TO TRUE
    MOVE CORR INDIC-AREA TO CTL-O-INDIC
    WRITE WRKSTN-REC FROM CTL-O FORMAT "CTL"
    SET DISPLAY-SUBFILE TO TRUE
    MOVE CORR INDIC-AREA TO CTL-O-INDIC
    MOVE 0 TO RRN.
    PERFORM WRITE-SUBFILE THROUGH WRITE-SUBFILE-END
       UNTIL RRN > 4.
INIT-SUBFILE-END.

WRITE-SUBFILE.
    ADD 1 TO RRN.
    WRITE WRKSTN-REC FROM SFL-O FORMAT "SFL".
WRITE-SUBFILE-END.


As you can see, I'm just trying to write out a few records to the subfile.
The DDS is minimal:


A                                      DSPSIZ(24 80 *DS3)
A                                      CF03(03)
A          R SFL                       SFL
A            AMOUNT         3S 0B  6 36
A            TOTAL          4Y 0O  6 42EDTCDE(L)
A          R CTL                       SFLCTL(SFL)
A                                      OVERLAY
A                                      SFLSIZ(0015)
A                                      SFLPAG(0014)
A N50 51                               SFLDSP
A N50                                  SFLDSPCTL
A  50                                  SFLCLR
A                                  1  2DATE
A                                      EDTCDE(Y)
A                                  1 32'PSC/400 COBOL Test'
A                                      DSPATR(HI)
A            PGMNAM        10A  O  1 68
A                                  2  2TIME
A                                  2 34'Subfile Test 1'
A                                      COLOR(YLW)
A                                  2 68USER
A                                  5 35'Amount'
A                                      DSPATR(HI)
A                                  5 42'Total'
A                                      DSPATR(HI)


I added indicator 51 to the SFLDSP keyword, and at least the control record
comes up.  Originally it was only conditioned with N50, and I got a nasty
MCH1202 error, which was most likely due to not writing any records to the
subfile.  I put the indicator 51 in, and now at least the subfile control
comes up correctly, but when I check the joblog, I see a whole slew of
CPF5021 "Incorrect relative record number or field selection error" errors.
Checking the value of the field RRN just prior to the WRITE, it looks fine,
cycling from 1 to 5 as I would expect.

So, somehow I'm not properly identifying the current relative record number
to the subfile.  I thought the RELATIVE KEY clause did that, but evidently
I'm not doing something correctly.  I've tried various sizes for the RRN
field, by the way, including PIC 9(2), PIC 9(4) and even PIC 999 COMP.  All
fail miserably.

Joe


> From: Jim Essinger
>
> Joe,
>
> What are you looking for with subfiles and COBOL?



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