title: passing oracle query from c#
body: <p>Does anyone know what does it reflects when passing a query from C# code to oracle database?</p>
  
  <p>Select first_name, last_name from database_name@whatisthis</p>
  
  <p>I'm particularly interested in @ sign then the word whatisthis, I mean, is it a linked server or a remote database name etc. </p>
  
  <p>Thanks</p>