Hello. Sorry for the long post. This has been a big problem for me, and I hope someone will help...
I have a long standing problem with an MySQL query. Or perhaps a couple of sql query problems... Firstly I have been told I cannot use sum() on a value while using group by "parm" because it's not accurate. This is obvious as the result sets are often quite wrong... However, while attempting to use MIN(), MAX(), SUM() etc.. it will error saying: ERROR 1140: Mixing of GROUP columns (MIN(),MAX(),COUNT()...) with no GROUP columns is illegal if there is no GROUP BY clause How can I organize data and get accurate sums? It seems the SQL crowd wants to have it's cake and eat it too on this one :) Secondly I have duplicate results. I know this to be the case for many reasons. I have manually taken the raw dump (input data file) and manually calculated all the results on paper, and when my counts are off, the are *always* to factors of the original number. For example if I get a result of 1024 for a certain count, and the output result is wrong, it's always some multiple of 1024 such as 2048. *However* SELECT DISTINCT doesn't SEE the duplicates, as so: mysql> CREATE TABLE clean_pcf AS SELECT DISTINCT * FROM pcf where release = curdate()-1; Query OK, 2438 rows affected (0.11 sec) Records: 2438 Duplicates: 0 Warnings: 0 mysql> Any ideas on how I can get rid of the bug wars??????? Regards, Kelly Black Linux was very clearly the answer, but what was the question again? -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
