title: SQL check if column contains specific values
body: <p>I have a table like this:</p>
  
  <pre><code>id     |  Values
  ------------------
    1    |  a
    1    |  b  
    1    |  c
    1    |  d
    1    |  e
    2    |  a
    2    |  a
    2    |  c
    2    |  c
    2    |  e
    3    |  a
    3    |  c
    3    |  b
    3    |  d
  </code></pre>
  
  <p>Now I want to know which id <strong>contains</strong> at least one of <strong>a</strong>, one of <strong>b</strong> and one of <strong>c</strong>. </p>
  
  <p>This is the result I want:</p>
  
  <pre><code>   id
  --------
    1
    3
  </code></pre>