RE: Second time updation of record within the same loop.

["Bale, Dan" <DBale@xxxxxxxx>]

Hoo-boy!  Hey guys, without getting into the religious war of DOU vs. DOW in
this situation, let's just help Dileep, OK?  

Dileep, 

In your choice of using DOU, you will have to code a "*INLR   IFNE *ON" -
"ENDIF" group.  The IF statement normally would go right after your READx,
and the ENDIF would go right before your ENDDO.  In your case, though, since
you have another condition that can set LR on, you would place the *INLR IF
right after that test.  As follows:

     C           *INLR     DOUEQ*ON
     C           'UB'      READEFILENAME                 LR
     C  NLR      COLDAT    IFGE BRDATE
     C                     SETON                     LR
     C                     ENDIF   
     C           *INLR     IFNE *ON
      *****
     C                     UPDATFILENAME
     C                     ENDIF
     C                     ENDDO

Not directly related to your question, but I would strongly recommend that
you *not* use the plain END opcode; instead use the ENDIF, ENDDO, ENDSL.
Makes the code a little bit more readable.

Don't know why you've got an endless loop on your pseudocode (I presume this
is a different problem than the actual code you presented?).  If you've
really got an endless loop, then your DOU either is testing the wrong thing
or the values that you're testing in the DOU are not changing in the manner
you expect them to.  Another possibility - in this loop, are you adding
records to the same file you're testing for EOF?  Or maybe even updating a
key value in the record, causing it to "appear" again later in the access
path?

hth,
- Dan Bale


> -----Original Message-----
> From: Dileep Mahi [SMTP:dileep.mahi@wipro.com]
> Sent: Friday, June 16, 2000 5:11 AM
> To:   RPG400-L@midrange.com
> Subject:      Second time updation of record within the same loop.
> 
> My code follows the following logic
> 
> DOU end of file.
> Read the file.
> If record is valid.
> Search for matching record in some other file.
> If search is successful, update records in file.
> EndDo
> 
> My Problem is, after EOF, the same loop is getting executed again from the
> start but only with the updated records and obviously the records are
> getting updated for the second time again. This goes on and on and my
> program never ends.
> 
> In this program,
>     LR indicator is used to test the end of file in following fashion
> 1.            *INLR    DOUEQ    *ON
> 2.            'UB'        READEFILENAME            LR
> 3. NLR    COLDAT    IFGE    BRDATE
> 4.                        SETON                              LR
> 5.                        END
> .................
> ..................
> N.                        UPDATFILENAME
> ...................
> X.                       END
> 
> While running the loop for second(or subsequent) time, if the condition in
> line 3 is satisfied, the LR indicator is set to *ON and control is coming
> out of the loop. Then other statements are being processed and the program
> is ending.
> 
> I want this loop to end after processing the last record of the file. Any
> suggestion in resolving this problem are worth a zillion appreciations...
> 
> Thanks in advance
> Dileep Mahi
> 
> 
> 
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