title: Initial Catalog vs AttachDbFilename in Connection string ado.net
body: <p>When it comes to Ado.net connection strings , I have used <code>Initial Catalog</code> attributes at most of my projects.</p>
  
  <p>But now most of the downloaded sample projects widely use <code>AttachDbFilename</code> attributes at connection string.</p>
  
  <p>I know <a href="http://www.connectionstrings.com/sql-server-2008" rel="noreferrer">both ways</a> can connect to database correctly. But what i really would like to know is that is there any differences.</p>
  
  <p>Because now I still could not decide which way I really need to follow when it comes to my MVC project which is really need to provide for multiple requests at the same time.</p>
  
  <p>Every suggestion will be really appreciated.</p>