----- Original Message ----- From: "Scott Haneda" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, September 15, 2004 8:12 PM Subject: Group by and results
> Are these 2 statements the same? > > tSql1 = select distinct foo, bar, baz from table > tSql2 = select foo, bar, baz from table group by foo, bar, baz > > Why would I get different results? I think you will always get the same results from those two statements. However, you will find the second one considerably more useful in the sense that you can add things to the Select clause without changing the rest of the statement, e.g. select foo, bar, baz, count(*), avg(bla) from table group by foo, bar, baz; That example will work and give you all of the different combinations of foo, bar, and baz that are found in the table PLUS the number of rows containing each combination and the average of the 'bla' value for each of those combinations. Good luck making the first statement return *that* result. Rhino -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
