It shouldn't, at least not to a empty ID because the condition test is on the READNEXT, not the ID.
However, it will pass an empty ID to the coding, which could be worse, if there aren't constraint checks on the ID. George > -----Original Message----- > From: owner-u2-us...@listserver.u2ug.org [mailto:owner-u2- > us...@listserver.u2ug.org] On Behalf Of Eric Armstrong > Sent: Monday, March 02, 2009 11:28 AM > To: u2-users@listserver.u2ug.org > Subject: RE: [U2] Strange happening... > > Allen, > Regarding your loop structure below. What happens if the ID is empty > string? > Won't it bail out before all the ids are read! > > Eric Armstrong > Lobel Financial > IT Dept > > > -----Original Message----- > From: Allen Egerton [mailto:aeger...@pobox.com] > Sent: Friday, February 27, 2009 8:37 AM > To: u2-users@listserver.u2ug.org > Subject: Re: [U2] Strange happening... > > As for the loop structure, I tend to like this: > SELECT FILENAME > LOOP WHILE READNEXT ID > CODE > CODE > CODE with GOSUB > CODE > CODE > REPEAT > > It's clean, it's concise, it's easy to read... And I wish I could > remember who taught me that you could combine the LOOP and READNEXT in > that manner... > > -- > Allen Egerton > aegerton at pobox dot com > PGP Key ID 0x8EA57261 ------- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
