Hi Tobias, Would the UNION command help? (otherwise we'd need to see the table definitions to comment)
Regards, =dn ----- Original Message ----- From: "Tobias Kremer :: IT" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: 28 January 2002 12:34 Subject: Re: selecting over various tables Hi, Thanx dn. I know how to build joined selects but the problem is that those two tables are not joinable. I don't have an entry in table 1 which references to a field in table 2. I just want to create a list of both tables ordered by date and limited to say 20 entries. At 12:22 28.01.02 +0000, you wrote: >Hi Tobias, > >Assume I have various tables which all have these three fields: > >userid, title, date_created > >Now I want to create a list containing entries >of all tables ordered by date_created with a single select. > >Is this possible or do I have to make either various >selects or create an extra table which stores just this >information ? > > >=Yes it can be done in a single statement, eg > >SELECT * > FROM userid, title, date_created > WHERE -join the tables together- > ORDER BY date_created > >=This is quite a large/involved topic. If you are not familiar with SQL >and relational techniques then instead >of attempting to read it in an email msg, it would be better to check out >some of the introductory articles on >the various PHP-support sites (start with the links at PHP.net); or >getting hold of an introductory text book. > >=Establish the linkage/relationship between each pair of tables using a >'join'. >=Establish the sequence of the resultset by using the ORDER BY clause of a >SELECT statement. >=These are detailed in the online manual (which has a search facility). > >=Regards, >=dn urbia Grüße - best regards Tobias Kremer Webmaster / Software-Entwicklung urbia.com AG Hohe Str.115, 50667 Köln tel: +49 (0)221 - 2949 154 fax: +49 (0)221 - 2949 599 e-mail: [EMAIL PROTECTED] http://www.urbia.de - we are family http://www.urbia.fr - votre espace famille http://www.urbia.co.uk - the family site "Linux is like a wigwam. No gates, no windows but an apache inside" --------------------------------------------------------------------- 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
