title: Unicode Parameter on Oracle Connectionstring
body: <p>Why does not Oracle ODP recognize the parameter Unicode=true and Devart's Provider does?</p>
  
  <p>WHen I have data containing the string : "ñãõ,éóúý" , my asp.net application shows "???,????" if I'm using Oracle's ODP. WHen I try to put the attribute <code>Unicode=true</code> in the connectionstring, it says that it's an invalid attribute.</p>
  
  <p>THe same behavior can be reproduced with Devart's provider. But it happens that when I place the <code>Unicode=true</code> attribute in the connectionstring everything is displayed nicely on the screen of my asp.net application.</p>
  
  <p>Why does that happen? Which attribute could I use in Oracle Data Provider (Oracle.DataAccess.Client) so that I can have my characters shown the way I want?</p>