title: SQL Server Function That Returns A Delimited String
body: <p>Hey I have a table like this:</p>
  
  <pre><code>ID  BitOne  BitTwo  BitThree
  --  ------  ------  --------
  99  NULL    1       NULL
  99  1       NULL    NULL
  </code></pre>
  
  <p>And I need a user function that returns the string "BitTwo, BitOne" for the ID: 99 - which would be the input parameter for the function.</p>
  
  <p>Is that possible?</p>