I love that "LOOP WHILE READNEXT" syntax. I know it works in jbase/UD/Pick OA/Sequoia--surprised it doesn't work for D3.
> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Mark Johnson > Sent: Thursday, July 14, 2005 11:26 PM > To: [email protected] > Subject: Re: [U2] [UV] Select Question > > > At the risk of starting another debate, I'll toss out my > preference on internal (or external) READNEXTS. > > UD: > LOOP WHILE READNEXT ID DO > BLAH > REPEAT > > D3: > LOOP READNEXT ID ELSE EXIT UNTIL 0 DO > BLAH > REPEAT > > MCD and others I use the infidel EOF=0 logic > EOF=0 > LOOP READNEXT ID ELSE EOF=1 UNTIL EOF DO > BLAH > REPEAT > > I have been stung when using the value of the incoming ID as > a test value. Thus I leave it alone. my 1 cent. > > ----- Original Message ----- > From: <[EMAIL PROTECTED]> > To: "u2-Users" <[email protected]> > Sent: Thursday, July 14, 2005 12:04 AM > Subject: [U2] [UV] Select Question > > > > Hi all, > > > > Can someone tell me the diference between the following two > examples > > of > executing an external select? > > > > SELECT FILE TO LIST > > LOOP > > READNEXT ID FROM LIST ELSE ID = @AM > > UNTIL ID = @AM DO > > REPEAT > > > > SELECT FILE > > LOOP > > READNEXT ID ELSE ID = @AM > > UNTIL ID = @AM DO > > REPEAT > > > > Someone pointed out to me that there is overhead in selecting to a > > list > that I need not be exposing myself to. Aren't they both kind > of reading from a list somewhere anyways? > > > > Thanks > > ------- > > u2-users mailing list > > [email protected] > > To unsubscribe please visit http://listserver.u2ug.org/ > ------- > u2-users mailing list > [email protected] > To unsubscribe please visit http://listserver.u2ug.org/ ------- u2-users mailing list [email protected] To unsubscribe please visit http://listserver.u2ug.org/
