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POMySQL INNER JOIN. Pull data from one table with data from another
 

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    <p>I am just getting started in learning how to do INNER JOINS correctly and I can't think of the best/easiest way to do this.</p> <p>I am building a url shortener and I am trying to build a query that will get all long_url.destination's matching a slug "test". One slug might point to multiple long_url.destination's(URL shuffling, GEO matching, etc...). So I need the slug to get all long_url.destination's with the same short_url.slug.</p> <p>Before I was running another query to get the short_id from the slug, then running another query to select all rows in long_url that had a matching short_id. </p> <p>I think it might be quicker if I use an inner join, but I am unsure how to properly set it up. </p> <p>I want to get all destination columns in table long_url with only the slug data in short_url without having to run a separate query to get the short_id from the slug.</p> <pre><code>Table: short_url Columns: short_id | slug | enabled | timestamp example: 1 test 1 1323343922 Table: long_url Columns: long_id | short_id | destination | geo | enabled | timestamp example: 1 1 http://www.test.com US 1 132334922 example: 2 1 http://www.test.co.uk UK 1 132334922 </code></pre> <p>I got this so far:</p> <pre><code>SELECT destination, geo FROM long_url INNER JOIN short_url ON long_url.short_id = short_url.short_id WHERE enabled = 1; function get_long_urls($slug) { $query = "SELECT...."; $stmt = $db-&gt;prepare($query); $stmt-&gt;execute(array(':slug' =&gt; $slug)); $results = $stmt-&gt;fetchAll(PDO::FETCH_ASSOC); return (array) $results: } example $results = array( 'http://www.test.com' =&gt; 'US', 'http://www.test.co.uk' =&gt; 'UK', ); </code></pre> <p>Thanks for any help.</p>
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    1. USBrandon
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      1. VTUpMod
    1. COYour query looks fine to me. What problem are you having exactly?
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      1. USJeremy Wiggins
    2. COI had to add WHERE slug = :slug to the query. Otherwise, I was just seeing if there was a more efficient/faster way to do it. So far this works fine, I just wanted to see if I was using the correct JOIN.
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      1. USBrandon
 

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