title: How to find out when a column was changed in Oracle DB?
body: <p>I want to be able to see when a specific column was changed.
  To clarify, I don't want to see <strong>when a row was changed.</strong>  I was able to do that with ROWDEPENDENCIES and triggers with a timestamp. With ROWDEPENDICIES I can see when the whole row was modified last but I specifically want to find out when the a specific column was changed.</p>
  <p>To clarify, I want the following table:</p>
  <pre><code>id   Name       Name_modified_on    Salary   Salary_modified_on
   1   Johnson    11.03.16 10:54:27   5000     11.03.16 10:51:27  
  </code></pre>
  <p>How do I do that? Thanks.
  PS: I'm running Oracle 11g.</p>