title: Solve problem 'connection as SYS should be as SYSDBA or SYSOPER'
body: <p>I try to connect to  oracle sys user by c# code and give me this error </p>
  
  <pre><code>ORA-28009: connection as SYS should be as SYSDBA or SYSOPER  
  </code></pre>
  
  <p>my connection code </p>
  
  <pre><code> OracleConnection financonn3 = new OracleConnection(connectionString: @"DATA SOURCE=10.10.10.150/bills;PASSWORD=xxxxxxx;USER ID=sys;");
  </code></pre>
  
  <p>what the way to solve this problem</p>