title: Difference between SYSDATE(),NOW(),CURRENT_TIMESTAMP,CURRENT_TIMESTAMP() in MySQL?
body: <p>As per my knowledge, </p>
  
  <pre><code>SYSDATE(),
  NOW(),
  CURRENT_TIMESTAMP, and
  CURRENT_TIMESTAMP() 
  </code></pre>
  
  <p>in MySQL are synonyms for one another. They all returns same value,then why MySQL provides all of them ? Are there different scenarios where I can use specific one of them ? </p>