Hi, On Jan 29, 2008 1:10 PM, Ramsey, Robert L <[EMAIL PROTECTED]> wrote: > Hi, > > I'm having trouble wrapping my head around this problem. I have a list > of events for multiple computers. What I want to get is a summary of > the top 3 most common errors for each computer. So I get a result like > this: > > Computername event numb_times > > Comp1 logon 100 > Comp1 restart 90 > Comp1 Word Error 75 > > Comp2 logoff 88 > Comp2 Excel Error 82 > Comp2 Word Error 17 > > Comp3 logon 110 > Comp3 restart 50 > Comp3 Notepad Error 25 > > Comp4 logon 90 > Comp4 explorer error 89 > Comp4 print job 65 > > Each computer might have a hundred different types of errors and a > thousand entries in the table. > > I thought the sql would be something like: > > Select computername, event, count(event) and numb_times, from eventtbl > group by computername, event order by computername, numb_times limit 3; > > But that wasn't the answer. Can I do this is one sql statement? Or am > I going to have to make temp tables or multiple select statements?
Try this: http://www.xaprb.com/blog/2006/12/07/how-to-select-the-firstleastmax-row-per-group-in-sql/ -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
