title: Proper way to make a connection and query to a SQL Server Express database
body: <p>I need a sample C# (console application) code witch connects to an SQL Server Express database 
  and inserts a few variables into a table "laptops"</p>
  
  <ul>
  <li>SQL Server Express is @ localhost</li>
  <li>user name is database</li>
  <li>and password is testdatabase</li>
  </ul>
  
  <p>What is the proper way to do that ? </p>