title: Can I save 7 booleans in 1 column?
body: <p>Right now I have 7 columns in my MySQL table:</p>
  
  <pre><code>monday
  tuesday
  wednesday
  ..
  </code></pre>
  
  <p>They are all booleans. Is there a way to combine these booleans in a single <code>days</code> column, by using a bitset/bitmap or something?</p>
  
  <p>I also want to be able to query the rows that have a specific day enabled. The query I'm using now is:</p>
  
  <pre><code>SELECT id FROM rows WHERE thursday = 1
  </code></pre>
  
  <p>Multiple days can be true, but I only need to query for 1 day at a time.</p>