title: Mysql select trouble
body: <p>It's the first time that I'm trying to achieve this kind of select. </p>
  
  <p>I have a column on my table that stores values like <code>1,3,45,32,47,4,9,100,23,2</code></p>
  
  <p>I want to make a <code>select</code> and retrieve just the values that match for example <code>4</code> but <code>not 45</code> on all lines of table.</p>
  
  <p>some times this column just have one number like <code>4</code></p>
  
  <p>if i make a selection using <code>LIKE %4,%</code> the SQL only will retrieve values of the first example and the records that have just one number won't appear.</p>
  
  <p>if i use <code>LIKE %4%</code> SQL will retrieve <code>4, 45, 47</code></p>
  
  <p>if i use REGEX <code>'^4$'</code> SQL only will retrieve <code>4</code> from both examples...</p>
  
  <p>Any help?</p>
  
  <p>P.S: Sorry my english I'm from Brazil!</p>