title: Get records based on date (last 30 days)
body: <p>I'm trying to get the records based on the last 30 days of the comment_date and a create_user_id. So for user_id 'BOB' it shouldn't be returning any records since there are records for 2/13 and 2/14 (which is within the 30-days of the comment_date). The same goes for 'STEVE', 'JOHN' and 'KEN'. How do I write the query for user_id 'TOM'(case 2), 'KEN'(case 3), and 'ROSS'(case 4)? Thanks</p>
  
  <pre><code>comments_sk case    comments         create_user_id   comment_date
  120          1      user_comment-1      JOHN           2/16/2017
  121          1      user_comment-2      BOB            2/14/2017
  122          1      user_comment-3      BOB            1/13/2017
  123          2      user_comment-1      BOB            2/13/2017
  124          2      user_comment-2      STEVE          2/13/2017
  125          2      user_comment-3      TOM            1/13/2017
  126          3      user_comment-1      JOHN           2/12/2017
  127          3      user_comment-2      JOHN           1/12/2017
  128          3      user_comment-3      KEN            1/11/2017
  129          4      user_comment-1      KEN            2/14/2017
  130          4      user_comment-2      ROSS           1/7/2017
  </code></pre>