title: Oracle sql developer - connection 'xe' does not exist?
body: <p>I am using oracle 11g express and sql developer. When I open SQL developer, I don't see any connection called 'xe'. When I try to create a connection with name = xe, user name = xe, some password and role == sysdba, 
  I get an error -</p>
  
  <pre><code>Status : Failure -Test failed: ORA-01017: invalid username/password; logon denied
  </code></pre>
  
  <p>Why is this happening and how can I see 'xe' ? How do I create a connection with sysdba privileges ? </p>
  
  <p>Please help me.
  Thanks.</p>