If I may, It depends, are the fields you're joining on indexed? How many keys are being joined and how many joins are you using. What database are you using? Which version? I prefer to use joins myself because it gets all the data in one place. However if you find that you are using a lot of where statements with your join you may wish to consider a sub select instead. A good thing to do would be to try each case and see which works faster in your situation.. Carl Furst Vote.com P.O. Box 7 Georgetown, Ct 06829 203-544-8252 carl@xxxxxxxx -----Original Message----- From: Mark Sargent [mailto:powderkeg@xxxxxxxxxxxxxxxx] Sent: Wednesday, May 11, 2005 10:31 AM To: php-general@xxxxxxxxxxxxx Subject: Re: Inner Join or 2nd Query...? Mark Rees wrote: >Hi All, > >with wanting to show both product types(Switch, Router etc) and >Makers(Cisco, Avaya, etc) on the one page in select boxes, I was >wondering, do you use 2 seperate queries to the database or do you inner > >join to get all in 1..? I have set up different tables with related id's > >etc. So, to get Products.product_name and Products.product_id along with > >what the below query pulls, what wold be best..? I believe if I do a 2nd > >query, than some variables need to be identified with the particular >query, yes..? Cheers. >---------------------------------------- >What is your question in one sentence? > >Is it "how do I do an inner join"? > > I guess I was looking for people's opinions, not a specific answer, I think... >Is it "are two separate queries on two tables faster than one query on >both tables"? > > Well, again, no not really. I guess I was curious how others do things. >Or something else entirely? > > Could be. Sorry, perhaps I'm thinking too general with this, yes..? Cheers. Mark Sargent. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
