title: Different CURRENT_TIMESTAMP and SYSDATE in oracle
body: <p>After executing this SQL in oracle 10g:</p>
  
  <pre><code>SELECT SYSDATE, CURRENT_TIMESTAMP  FROM DUAL
  </code></pre>
  
  <p>I receive this strange output:
  <img src="https://i.stack.imgur.com/FiPgB.png" alt="Toad output for query"></p>
  
  <p>What is cause of the difference in time? 
  The server time is equal of SYSDATE value</p>