Sorry to post this again. But I havent figured it out yet. Any hints? Thaks
>From: "Guitar Man" <[EMAIL PROTECTED]> >To: [EMAIL PROTECTED] >Subject: LEFT JOIN? >Date: Wed, 24 Oct 2001 18:06:29 +0000 > >I have these 3 tables: >T1: T2: >Service Application | Application Machine >------------------------------------------- >network DHCP DHCP mach1 >Database SQL SQL mach2 >Email Exchange SNMP mach2 >network SNMP Exchange mach5 >===== >T3: >Service Doc/notes >------------------ >Network www.google.com >Database Test >Traning test >---------------- >As you can see , some service do not provide any application so they do not >have any servers associated with them. First of all is these a good table >structure? My actual tables has more columns. The data I am interested in >is >Service and the application running (if) and the machine related with it >(if >there's a machine) if not return nothing. > >here's my query: > >$query= "select distinct T3.service, T1.application, >T2.machine from T3,T1 LEFT JOIN T2 ON >T1.application=T2.application where T1.service=T3.service"; > > >This works and I can format it with php very nicely. But it doesn;t return >the data "traning" in T3. Do i need another join? > >Any hint? let me know if its not clear enough. Thanks for your help. > > >_________________________________________________________________ >Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp > > >--------------------------------------------------------------------- >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 > _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp --------------------------------------------------------------------- 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
