Re: join across databases - how to select databases?

From: Date: Fri, 22 Aug 2003 15:33:08 +0000
Subject: Re: join across databases - how to select databases?
References: 1  Groups: php.db 
Request: Send a blank email to php-db+get-30054@lists.php.net to get a copy of this message
From: "Moshe Weitzman" <phpnntp.20.weitzman@spamgourmet.org> > I have looked all over the web but can't find an example *in php* for > connecting to a mysql server, selecting database(s), and issueing a query > which joins across databases. I already know the SQL required to achieve a > multiple database query. My question is about how many calls to > mysql_select_db() are required, does order matter, etc. What have you tried? What does mysql_error() say after each attempt? I assume something like the following would work, regardless of whether/how you've called mysql_select_db() SELECT t1.column FROM database1.table1 t1 JOIN database2.table2 t2 ON t1.id = t2.id If you have something working from the MySQL command line, then it's going to work from mysql_query() with the same exact syntax. ---John Holmes...

« previous php.db (#30054) next »