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    <blockquote> <pre><code>SELECT * FROM TABLE_NAME WHERE b IN(5,7) AND c IN(4,4) </code></pre> </blockquote> <p>This query will return rows, where <code>b</code> is either <code>5</code> or <code>7</code>, AND <code>c</code> is <code>4</code>.</p> <p>What do you mean by "evaluation in pairs?"</p> <p><strong>Update:</strong></p> <p>I'll add one more row to the sample:</p> <pre><code> +----------+----------+----------+ | PK | b | c | +----------+----------+----------+ | 1 | 2 | 3 | +----------+----------+----------+ | 2 | 5 | 4 | +----------+----------+----------+ | 3 | 7 | 9 | +----------+----------+----------+ | 4 | 7 | 4 | +----------+----------+----------+ | 5 | 2 | 9 | +----------+----------+----------+ </code></pre> <p>If you want to match the whole sets, you can use this syntax:</p> <pre><code>SELECT * FROM table_name WHERE (b, c) IN ((2, 3), (7, 9)) </code></pre> <p>This means: "return all rows where <code>b</code> is <code>2</code> and <code>c</code> is <code>3</code> at the same time, OR <code>b</code> is <code>7</code> and <code>с</code> is <code>9</code> at the same time."</p> <p>In the example above, this query will return rows <code>1</code> and <code>3</code></p> <p>But if you rewrite this query the other way around, like this:</p> <pre><code>SELECT * FROM table_name WHERE b IN (2, 7) AND c IN (3, 9) </code></pre> <p>, this will mean "return all rows where <code>b</code> is either <code>2</code> or <code>7</code>, AND <code>c</code> is either <code>3</code> or <code>9</code>).</p> <p>This will return rows <code>1</code>, <code>3</code> and <code>5</code>, since row <code>5</code> satisfies the condition for the second query but not for the first one.</p>
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    1. COYes, that's what i'm trying to do (the whole sets thing), only that i'm not a english speaker and i guess i didn't make myself clear If somebody could edit the question to reflect what i'm looking for, please feel free to do it.
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