Hello, I am not good at SQL optimization at all. Unfortunately, I did not understand how I should be re-writing my sample SQL. Would you post a sample SQL which should run faster, please?
Thanks & regards, Ertan Küçükoğlu -----Original Message----- From: firebird-support@yahoogroups.com <firebird-support@yahoogroups.com> Sent: Thursday, December 26, 2019 4:57 PM To: firebird-support@yahoogroups.com Subject: Re: [firebird-support] Identify computed by columns in table 26.12.2019 13:11, ertan.kucuko...@1nar.com.tr [firebird-support] wrote: > left join Left join here can unnecessary kill performance. There cannot be fields without corresponding table. -- WBR, SD. ------------------------------------ ------------------------------------ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 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 ------------------------------------ ------------------------------------ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 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: firebird-support-dig...@yahoogroups.com firebird-support-fullfeatu...@yahoogroups.com <*> To unsubscribe from this group, send an email to: firebird-support-unsubscr...@yahoogroups.com <*> Your use of Yahoo Groups is subject to: https://info.yahoo.com/legal/us/yahoo/utos/terms/
