title: The type or namespace name 'oracle' could not be found error
body: <p>I am building C# Console Application to connect with database and do simple query.</p>
  
  <p>But when I debug program, I get this error:</p>
  
  <pre><code>The type or namespace name 'Oracle' could not be found ( are you missing a using directive or an assembly reference? )
  </code></pre>
  
  <p>I need to use:</p>
  
  <pre><code>using Oracle.DataAccess.Client;
  </code></pre>
  
  <p>I have downloaded from Oracle site ODAC pack. Inside I have Install batch file ( i have used it ) but nothing still.</p>
  
  <p>I am using MS VS2012 Express for Windows Desktop.</p>
  
  <p>What file should I include when adding a reference ?</p>