title: Oracle SQL for Last Business Day of Current Month including federal holidays in oracle
body: <p>I'm trying to find the Oracle SQL for finding the last business day of current month and also last business day of previous month. Both cases should consider the federal holidays calendar.</p>
  
  <p>For Example:</p>
  
  <ul>
  <li>Last Business Day of Current Month</li>
  <li>If am running as of date 15th November, 2019 </li>
  </ul>
  
  <p>I should technically get my output as 29th November since 28th is Thanksgiving holiday.</p>