title: Retrieve value from an column from sqlite database
body: <p>I want something like below</p>
  
  <p>My database contains a column called <code>Name</code> which contains following values</p>
  
  <pre><code>Name
  a
  a
  b
  b
  a
  c
  b
  d
  </code></pre>
  
  <p>I want to retrive something like below</p>
  
  <pre><code>Result
  a
  b
  c
  d
  </code></pre>
  
  <p>How can I achieve this ?</p>