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I check sqlcod = 0 for connect, disconnect, open, close, declare, prepare etc. With Fetch and select I check for SQLCOD = 100. Something like Dou eof Exsr SQLFetch If eof = *on Leave Endif Enddo SQLFetch begsr Fetch If sqlcod = 100 Eval eof = *on Endif Endsr Phil -----Original Message----- From: owner-rpg400-l@midrange.com [mailto:owner-rpg400-l@midrange.com]On Behalf Of Stone, Brad V (TC) Sent: Friday, May 04, 2001 3:35 PM To: 'RPG400-L@midrange.com' Subject: SQL, the best way for looping This brings up an interesting question. What do people use for looping in SQL. I know that if you check for 100, if your cursor doesn't open for some reason you will loop forever, as Bruce mentioned. What is the "best" way to do this? Brad > -----Original Message----- > From: R. Bruce Hoffman, Jr. [mailto:rbruceh@attglobal.net] > Sent: Friday, May 04, 2001 2:16 PM > To: RPG400-L@midrange.com > Subject: Re: SQL - just looking for a little guidance. > > > Not a comment on the SQL, but why do you first test not equal > to 100 and > then test equal to zeros on the SQLCODE? > > If you are looking for efficiency, those tests don't make a > whole lot of > sense. > > Also be aware that since your loops are based on the SQLCODE > being 100, that > another serious error returning something other than 100, > will cause the > program to loop. > > =========================================================== > R. Bruce Hoffman, Jr. > -- IBM Certified Specialist - AS/400 Administrator > -- IBM Certified Specialist - RPG IV Developer > > "America is the land that fought for freedom and then > began passing laws to get rid of it." > > - Alfred E. Neuman > > -----Original Message----- > From: Smith, Mike <Mike_Smith@RGCResources.com> > To: RPG400-L@midrange.com <RPG400-L@midrange.com> > Date: Friday, May 04, 2001 9:46 AM > Subject: SQL - just looking for a little guidance. > > > >I would just like for you to look at this program, and tell > me if it should > >have been done differently. > >It doesn't do a whole lot, but i would like to make it as > efficient as > >possible. > >Should i have done a multirow fetch? > >could i have done a join on the update and made the whole > thing work in 1 > or > >2 sql statements.? > > > >I'm just trying to figure out how to do things better. > > > >Oour shop is exploring SQL and trying to use it as much as > possible and i'm > >the guy that gets to experiment with it. So any help is appreciated. > > > >I have this program that updates 2 files based on the data > from the first > >file > > * DATA STRUCTURES > > D UPRMDS E DS EXTNAME(UPRM) INZ > > D UCBSDS E DS EXTNAME(UCBS) INZ > > D RTUPDWFDS E DS EXTNAME(RTUPDWF) INZ > > > >C/EXEC SQL > >C+ Declare WRKCURS CURSOR FOR > >C+ SELECT * FROM RTUPDWF > >C/END-EXEC > > > > * OPEN THE CURSOR - ROUTE CHANGE WORK FILE > > > >C/EXEC SQL > >C+ OPEN WRKCURS > >C/END-EXEC > > > > * READ THROUGH THE FILE UNTIL EOF > > > >C DOU SQLCOD = 100 > >C/EXEC SQL > >C+ FETCH WRKCURS INTO :RTUPDWFDS > >C/END-EXEC > > > > > > C IF SQLCOD <> 100 > > C IF SQLCOD = 00000 > > > > * GET ALL RECORDS IN UPRM FOR THE ROUTE SELECTED IN RTUPDWF > > > > C/EXEC SQL > > C+ Declare PRMCURS CURSOR FOR > > C+ SELECT * FROM UPRM > > C+ WHERE UPRTE = :RTORT > > C/END-EXEC > > > > * OPEN THE CURSOR - PREMISE FILE > > > > C/EXEC SQL > > C+ OPEN PRMCURS > > C/END-EXEC > > > > * READ THROUGH THE FILE UNTIL EOF > > > > C DOU SQLCOD = 100 > > > > C/EXEC SQL > > C+ FETCH PRMCURS INTO :UPRMDS > > C/END-EXEC > > > > C IF SQLCOD <> 100 > > C IF SQLCOD = 00000 > > C EXSR $UPDATEPRM > > C ENDIF > > C ENDIF > > C ENDDO > > > > C EXSR $CLOSEPRM > > > > * GET ALL RECORDS IN UCBS FOR THE ROUTE SELECTED IN RTUPDWF > > > > C/EXEC SQL > > C+ Declare CBSCURS CURSOR FOR > > C+ SELECT * FROM UCBS > > C+ WHERE USORT = :RTORT > > C/END-EXEC > > * OPEN THE CURSOR - ACCOUNT BILLED SERVICES FILE > > > > C/EXEC SQL > > C+ OPEN CBSCURS > > C/END-EXEC > > > > * READ THROUGH THE FILE UNTIL EOF > > > > C DOU SQLCOD = 100 > > C/EXEC SQL > > C+ FETCH CBSCURS INTO :UCBSDS > > C/END-EXEC > > > > C IF SQLCOD <> 100 > > C IF SQLCOD = 00000 > > C EXSR $UPDATECBS > > C ENDIF > > C ENDIF > > C ENDDO > > > > C EXSR $CLOSECBS > > > > C ENDIF > > C ENDIF > > ENDDO > > C EXSR $CLOSEWRK > > EVAL *INLR = *ON > > *================================================================ > > * PROGRAM SUBROUTINES > > *---------------------------------------------------------------- > > ***************************************************************** > >C $UPDATEPRM BEGSR > >C/EXEC SQL > >C+ UPDATE UPRM SET > >C+ UPRTE = :RTNRT > >C/END-EXEC > > > > C ENDSR > > ***************************************************************** > > RTU > > C $UPDATECBS BEGSR > > C/EXEC SQL > > C+ UPDATE UCBS SET > > C+ USORT = :RTNRT > > C/END-EXEC > > > > C ENDSR > > ***************************************************************** > > C $CLOSEWRK BEGSR > > C/EXEC SQL > > + CLOSE WRKCURS > > C/END-EXEC > > C ENDSR > > ***************************************************************** > > C $CLOSEPRM BEGSR > > C/EXEC SQL > > + CLOSE PRMCURS > > C/END-EXEC > > C ENDSR > > ***************************************************************** > > > > ************************************* > >C $CLOSECBS BEGSR > >C/EXEC SQL > > + CLOSE CBSCURS > >C/END-EXEC > >C ENDSR > > *=================================== > > > > > >Michael Smith > > > >+--- > >| This is the RPG/400 Mailing List! > >| To submit a new message, send your mail to RPG400-L@midrange.com. > >| To subscribe to this list send email to RPG400-L-SUB@midrange.com. > >| To unsubscribe from this list send email to > RPG400-L-UNSUB@midrange.com. > >| Questions should be directed to the list owner/operator: > david@midrange.com > >+--- > > +--- > | This is the RPG/400 Mailing List! > | To submit a new message, send your mail to RPG400-L@midrange.com. > | To subscribe to this list send email to RPG400-L-SUB@midrange.com. > | To unsubscribe from this list send email to > RPG400-L-UNSUB@midrange.com. > | Questions should be directed to the list owner/operator: > david@midrange.com > +--- > +--- | This is the RPG/400 Mailing List! | To submit a new message, send your mail to RPG400-L@midrange.com. | To subscribe to this list send email to RPG400-L-SUB@midrange.com. | To unsubscribe from this list send email to RPG400-L-UNSUB@midrange.com. | Questions should be directed to the list owner/operator: david@midrange.com +--- _________________________________________________________ Do You Yahoo!? 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