title: Compare tools to generate update script for SQL server
body: <p>I would like to make the update of the web application as automated as possible.<br>
  I'm looking for a tool that can compare two instances of a database and generate an update script for me. As part of the build process create a instance of the last version of the database (ie currently in production) and compare that to what has been changed on the development version.  </p>
  
  <p>Any input is appreciated.</p>