title: SQL Server localdb. Confusion about two MDF files
body: <p>In my WPF/C# app, I recently installed localDB v.11 via nuget. Then I created a <code>.MDF</code> file in the root of my project.</p>
  
  <p>When I run the app, the CRUD operations work fine, but they all are carried out on the database created in the <code>bin\debug</code> folder.</p>
  
  <p>Nothing changes in my root <code>.MDF</code> file. Please guide, why is it happening?</p>
  
  <p>Is there a way to store data in the actual <code>.MDF</code> file? Or am I getting the concept wrong. What happens if I make a release and use it on some other system?
  My internet search lead me to many links which didn't answer my question.</p>
  
  <p>Please also suggest some tutorial/book for using localdb.</p>
  
  <p>Regards</p>