title: How to prevent DbContext from altering the database?
body: <p>I'm learning Entity Framework (currently using EF6 beta) and I'm using the code first pattern on an existing database. The entities and <code>DbContext</code> class are created automatically using a T4 template.</p>
  
  <p>I would like to prevent the <code>DbContext</code> from creating / altering anything into the database at runtime.</p>
  
  <p>How can I do that?</p>