title: how to drop administrative user in oracle 12c
body: <p>I am not able to drop a user created by me which has administrative rights.</p>
  
  <p>I am running below command:</p>
  
  <pre><code>drop user GOVIND CASCADE;
  </code></pre>
  
  <p>This is the error I am getting:</p>
  
  <pre><code>ERROR at line 1:
  ORA-28014: cannot drop administrative users
  </code></pre>