title: Filter integer result from Mysql query
body: <p>I have a Mysql query. I want to filter only integer result.
  My query is-</p>
  
  <pre><code>SELECT * FROM table as p WHERE p.test between 0 AND 999
  </code></pre>
  
  <p>But result comes this-</p>
  
  <pre><code>747
  748
  749
  FO4001
  FO4002
  750
  751
  </code></pre>
  
  <p>I want to ask two things-</p>
  
  <p>1)Is there any way to exclude below result-</p>
  
  <pre><code>FO4001
  FO4002
  </code></pre>
  
  <p>2)Why are these coming in the result?</p>