Re: SQL - Update problem
Hi, Egor has right and i didn't read very carefully you e-mail.Sorry You can try this : SET @a:=0; SET @b:=0; SELECT @a:=COUNT(*),@b:=sekce.id FROM odkaz,sekce WHERE odkaz.sekce_id = sekce.id; UPDATE sekce SET pocet = @a WHERE id= @b; Now...i think it's corect... Regards, Gelu _ G.NET SOFTWARE COMPANY Permanent e-mail address : [EMAIL PROTECTED] [EMAIL PROTECTED] - Original Message - From: "Jakub Mach" <[EMAIL PROTECTED]> To: "Mysql" <[EMAIL PROTECTED]> Sent: Wednesday, August 28, 2002 5:15 PM Subject: SQL - Update problem > Hi, > > how can I do sql command like this: > > update sekce set pocet = count(*) from odkaz where odkaz.sekce_id = sekce.id > > Thanks for answer > > j. > > > - > Before posting, please check: >http://www.mysql.com/manual.php (the manual) >http://lists.mysql.com/ (the list archive) > > To request this thread, e-mail <[EMAIL PROTECTED]> > To unsubscribe, e-mail <[EMAIL PROTECTED]> > Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php > > - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: SQL - Update problem
Hi, ...adding a new query and using variable: SET @a:=0; --initialize variable a; select @:=COUNT(*) from odkaz where odkaz.sekce_id = sekce.id; update sekce set pocet = @a where odkaz.sekce_id = sekce.id; Regards, Gelu _ G.NET SOFTWARE COMPANY Permanent e-mail address : [EMAIL PROTECTED] [EMAIL PROTECTED] - Original Message - From: "Jakub Mach" <[EMAIL PROTECTED]> To: "Mysql" <[EMAIL PROTECTED]> Sent: Wednesday, August 28, 2002 5:15 PM Subject: SQL - Update problem > Hi, > > how can I do sql command like this: > > update sekce set pocet = count(*) from odkaz where odkaz.sekce_id = sekce.id > > Thanks for answer > > j. > > > - > Before posting, please check: >http://www.mysql.com/manual.php (the manual) >http://lists.mysql.com/ (the list archive) > > To request this thread, e-mail <[EMAIL PROTECTED]> > To unsubscribe, e-mail <[EMAIL PROTECTED]> > Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php > > - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: SQL - Update problem
Jakub, Wednesday, August 28, 2002, 5:15:01 PM, you wrote: JM> how can I do sql command like this: JM> update sekce set pocet = count(*) from odkaz where odkaz.sekce_id = sekce.id First: multi-table updates is supported only since 4.0.2 Second: even on 4.0.2 you can't do it with above query -- For technical support contracts, goto https://order.mysql.com/?ref=ensita This email is sponsored by Ensita.net http://www.ensita.net/ __ ___ ___ __ / |/ /_ __/ __/ __ \/ /Egor Egorov / /|_/ / // /\ \/ /_/ / /__ [EMAIL PROTECTED] /_/ /_/\_, /___/\___\_\___/ MySQL AB / Ensita.net <___/ www.mysql.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
[select into] RE: SQL - Update problem
Hmm .. isn't there any workaround for this .. Maybe something like: select count(*) into :somerVar FROM table; update sekce set pocet = :someVar WHERE ... blabla; I've seen things like this in other databas servers but haven't been able to find out if it's supported by MySQL, and if so, how... Thanks, Wouter -Oorspronkelijk bericht- Van: Mary Stickney [mailto:[EMAIL PROTECTED]] Verzonden: August 28, 2002 16:37 Aan: Jakub Mach; Mysql Onderwerp: RE: SQL - Update problem you cant update from is NOT supported -Original Message- From: Jakub Mach [mailto:[EMAIL PROTECTED]] Sent: Wednesday, August 28, 2002 9:15 AM To: Mysql Subject: SQL - Update problem Hi, how can I do sql command like this: update sekce set pocet = count(*) from odkaz where odkaz.sekce_id = sekce.id Thanks for answer j. - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
RE: SQL - Update problem
you cant update from is NOT supported -Original Message- From: Jakub Mach [mailto:[EMAIL PROTECTED]] Sent: Wednesday, August 28, 2002 9:15 AM To: Mysql Subject: SQL - Update problem Hi, how can I do sql command like this: update sekce set pocet = count(*) from odkaz where odkaz.sekce_id = sekce.id Thanks for answer j. - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
SQL - Update problem
Hi, how can I do sql command like this: update sekce set pocet = count(*) from odkaz where odkaz.sekce_id = sekce.id Thanks for answer j. - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
