title: Oracle performance with multiple same column indexes
body: <p>I'm Working with a new Oracle DB, with one table having the following indexes:</p>
  
  <ul>
  <li>Index 1: ColA, ColB </li>
  <li>Index 2: ColA</li>
  </ul>
  
  <p>Is the second index redundant, and Will this have a negative impact on performance?</p>