Hi, Could you post the data or a test case with random data?
Regards, Thomas On Thu, Oct 16, 2008 at 5:01 AM, Abyric <[EMAIL PROTECTED]> wrote: > > After thouroughly reading trough many SQL optimisation sites I still > fail to see what I can to to increase performance. To keep it short, > my query joins 16 tables. When using explain, all the joins use > foreign/primary keys so they are indexed. I double checked that since > all the columns in the WHERE-clause of the explain have been index > (again, as primary or foreign key). > > Why is it that executing the query and fetching 100 records, takes > 1600 ms? Truth is that 5,000 records take 2734 ms > > I don't understand why 100 recods take so long and 5,000 records are > relative fast... > Help? > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "H2 Database" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/h2-database?hl=en -~----------~----~----~----~------~----~------~--~---
