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POHow get multiple values from first mysql table and use it in second query?
 

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  1. POHow get multiple values from first mysql table and use it in second query?
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    <p><strong>table1</strong></p> <pre><code>id | author | number_of_view | ---+--------------+----------------- 1 | john | 10 2 | Jack | 20 3 | Anna | 80 4 | Neri | 100 </code></pre> <p>Below I have a PHP script which checks MySQL database table and gives badges to users. The script works perfectly. </p> <pre><code>$from1=10; $to1=15; $from2=20; $to2=30; $query=mysql_query("SELECT SUM( number_of_view ) AS view_number, author FROM `table1` GROUP BY author"); while ($row= mysql_fetch_array($query)) { $view_number=$row['view_number']; $author=$row['author']; if ($viewnumber&gt;$from1 &amp;&amp; $viewnumber&lt;=$to1) { echo "special user"; } elseif ($viewnumber&gt;$from2 &amp;&amp; $viewnumber&lt;=$to2) { echo "plain user"; } } } </code></pre> <p>But problem is that I want to get <code>$from</code> and <code>$to</code> variable values from database table:</p> <p><strong>table2</strong></p> <pre><code>id | badge | from |to ---+-------------+------+--- 1 | special user| 10 |15 2 | plain user | 20 |30 </code></pre> <p>Here it is second query and PHP script for the second table:</p> <pre><code>$query2=mysql_query("SELECT * FROM table2"); while ($row= mysql_fetch_array($query2)) { $badgeName=$row['view_number']; //I would like to use this variable above. So instead of "echo 'special user';" I would like use "echo $badgeName" $from=$row['author']; // I would like to use this variable above instead of $from1 and $from2 $to=$row['to']; // I would like to use this variable above instead of $to1 and $to2 } </code></pre> <p>How can I do that? </p>
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      1. POHow get multiple values from first mysql table and use it in second query?
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    1. COI don't see a second query. Explain, how you'd like to use the query result in your second query.
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      1. USSteAp
    2. COYou can do a subquery, e.g. `SELECT id, first_name FROM student_details WHERE first_name IN (SELECT first_name FROM student_details WHERE subject='Science')`. You'd have to provide more details to get a query that works for your particular situation but this is probably the general idea you want to use.
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      1. USCraig W
 

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