Mike, I can't do that with my comments - I get all six of the records in the result with the example instead of just four like I want . . but someone else had a solution without using the "group by" clause . . Phil. On Sun, 2008-01-27 at 13:56 -0500, Mike Ginsburg wrote: > Hi Phil, > Each of columns that you specify in your SELECT clause, must also > appear in the GROPU BY clause. > > SELECT COUNT(*) AS cnt, name, comment, ... > FROM tst > GROUP BY name, comment, ... > HAVING COUNT(*) = 1; > > > Phil Rhoades wrote: > > People, > > > > > > > >> select count(*) as cnt, name from tst group by name having count(*) = 1 > >> > > > > > > This worked for my basic example but not for my actual problem - I get > > "column comment must appear in the GROUP BY clause or be used in an > > aggregate function" errors so I have a related question: > > > > With table: > > > > name comment > > > > 1 first comment > > 2 second comment > > 3 third comment > > 3 fourth comment > > 4 fifth comment > > 5 sixth comment > > > > - how can I use something like the previous select statement but where > > the comment field does not appear in the "group by" clause and gives the > > following result: > > > > 1 first comment > > 2 second comment > > 4 fifth comment > > 5 sixth comment > > > > Thanks, > > > > Phil. > > > > Mike Ginsburg > Collaborative Fusion, Inc. > mginsburg@xxxxxxxxxxxxxxxxxxxxxxx > 412-422-3463 x4015 > -- Philip Rhoades Pricom Pty Limited (ACN 003 252 275 ABN 91 003 252 275) GPO Box 3411 Sydney NSW 2001 Australia Fax: +61:(0)2-8221-9599 E-mail: phil@xxxxxxxxxxxxx ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend
