thanks, you sparked my memory, I KNEW I'd seen it somewhere :) we had built a system where the users submitted the information they wanted to select on through a form and we dynamically built the sql statement. Since the program to build the statement always included WHERE, by hard-coding WHERE 1=1 we were able to add the remainder of the where clause as "AND ......". If there was nothing in the form, the query still worked.
--- [EMAIL PROTECTED] wrote: > > Maybe You could find useful such approach: > > where_clause = ''; > comma = ' WHERE '; > LOOP > where_clause = comma || new_condition; > comma = ' AND '; > END LOOP; > > So in this case You don't need always WHERE in your select especially > such > interesting construction like 1=1 > > BUT as always IT DEPENDS... > > Gints Plivna > IT Sistēmas, Merķeļa 13, LV1050 Rīga > http://www.itsystems.lv/gints/ > > > > > > Iulian.ILIES@mob > > il-rom.com To: Multiple > recipients of list ORACLE-L <[EMAIL PROTECTED]> > Sent by: cc: > > [EMAIL PROTECTED] Subject: RE: Where 1 = > 1 > > > > > 2001.10.26 09:55 > > Please respond > > to ORACLE-L > > > > > > > > > > I sometime used this kind of aproach when I dinamically build the > WHERE > expression. > Something like this: > > where_condition := ' WHERE 1 = 1 ' > LOOP > where_condition := ' AND ' || new_condition > END LOOP > The point is if there are any condition to add the first condition is > always > true so it won't affect the final where_condition. The same is when > there > aren't any condition to add. > And in some cases there are really no conditions to add, thus your > final > query will have only a condition like ' WHERE 1 = 1 '. > > If you need to connect all the intermediate condition by OR operator > probably you will use the > WHERE 1 = 0. > > I hope I'll make my point clear enough and of course is any related > to your > case. Maybe if you show us the entire query, someone can tell you > more > about > it. > > Regards > Iulian Ilies > > > > -----Original Message----- > Sent: Friday, October 26, 2001 2:20 AM > To: Multiple recipients of list ORACLE-L > > > ********************************************************************** > This email has been tested for viruses by F-Secure Antivirus > administered by IT Network Department. > ********************************************************************** > > I was monitoring a load test of my company's new > application when I came across something interesting. > One of the more monstrous queries had the following as > part of its WHERE clause: 'AND 1 = 1' > > Has anyone seen this used before? What is it supposed > to achieve? > > __________________________________________________ > Do You Yahoo!? > Make a great connection at Yahoo! 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