Niko, > Hello all, > > i am running a simple query where the result contains 3 records. The > query should provide all records in a specific week. > > SELECT * FROM ARBEITSEINTEILUNG AS a where a.baustelle = '12345' AND > WOCHE = '2015-41'; > > Some times I dont have a week but two dates: > > In this case – the very same number of records = 3 is the result set I > see that the table Arbeitseinteilung gots 42 reads. > > SELECT * FROM ARBEITSEINTEILUNG AS a where a.baustelle = '12345' AND > a.DATUM >= '05.10.2015' AND a.DATUM <= '11.10.2015'; > > How can I improve the query?
Hmm, what is the execution time for both queries? 42 isn't a lot. This might also include accessing system tables ... -- With regards, Thomas Steinmaurer http://www.upscene.com/ Professional Tools and Services for Firebird FB TraceManager, IB LogManager, Database Health Check, Tuning etc. ------------------------------------ ------------------------------------ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Visit http://www.firebirdsql.org and click the Documentation item on the main (top) menu. Try FAQ and other links from the left-side menu there. Also search the knowledgebases at http://www.ibphoenix.com/resources/documents/ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ------------------------------------ Yahoo Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/firebird-support/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/firebird-support/join (Yahoo! ID required) <*> To change settings via email: [email protected] [email protected] <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo Groups is subject to: https://info.yahoo.com/legal/us/yahoo/utos/terms/
