Problem with MYSQL Join

Question

grant.baker 10 Newbie Poster

11 Years Ago

I'm having a problem with a MYSQL Join accross three tables. I'm new to MYSQL Join functions, and can't quite figure out how to write the code. My current code is horribly innefficient and does not implement explicit joins, which I believe is much of the problem. Here it is(in php):

mysql_query("Select Airports.*, Regions.name AS RegionName, Countries.name AS CountryName, Regions.local_code AS StateCode FROM Airports, Regions, Countries WHERE Airports.ident LIKE '%".$fix."%' AND Regions.iso_region=Airports.iso_region AND Countries.code=Airports.iso_country")

I think this code shows pretty clearly which information I need from the database. Any suggestions on how to write the explicit join would be much appreciated!

join mysql

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Latest Post 11 Years Ago Latest Post by pixelsoul

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pixelsoul 272 Red Pill Featured Poster · Answer 1 · 2013-03-05T16:22:09+00:00

Yeah, you have to actually tell it what tables to join and where. It would be hard for me to tell how to write this since I don't know what needs to be joined but I would check out the following link and see the section about INNER JOIN. http://www.sitepoint.com/understanding-sql-joins-mysql-database/