title: Amazon RDS: Restore snapshot to existing instance
body: <p>I have created a snapshot of my instance and made some unwanted changes in DB.</p>
  
  <p>Now I want to restore my instance from this snapshot.</p>
  
  <p>When I try to do it - it creates me one more instance, additionally to the one I have.</p>
  
  <p>I specify "DB Instance Identifier" and after that I get two instances with the same ID.</p>
  
  <p>So my question: Is there any way to restore snapshot to existing instance?</p>
  
  <p>Because in other case - new instance is created with differrent endpoint (hostname) and I need to change my configs to access database. Or there is a better way to manage such cases?</p>