title: How the right way to rollback migration with Entity Framework
body: <p>I'm very newbie with EF and migration. I'm trying to make a rollback with the command, to run the Down method</p>
  
  <pre><code>update-database -TargetMigration MyLastMigration
  </code></pre>
  
  <p>Output result</p>
  
  <pre><code>Target database is already at version 201701031905415_MyLastMigration.
  </code></pre>
  
  <p>How can I execute the Down method of MyLastMigration?</p>
  
  <p>Thanks in advance</p>