title: select the most recent entry
body: <p>I have the following table:</p>
  
  <pre><code>LOCATION_ID, PERSON_ID, DATE
  3, 65, 2016-06-03
  7, 23, 2016-10-28
  3, 23, 2016-08-05
  5, 65, 2016-07-14
  </code></pre>
  
  <p>I want to build a select query in PL/SQL to select the records with the <strong>most recent</strong> location_id per person_id. For the above sample, the desired result should be:</p>
  
  <pre><code>LOCATION_ID, PERSON_ID, DATE
  5, 65, 2016-07-14
  7, 23, 2016-10-28
  </code></pre>
  
  <p>(DATE expressed as 'YYYY-MM-DD')</p>
  
  <p>Thank you!</p>