title: Where can I find good examples or tutorials for sqlalchemy-migrate
body: <p>In <a href="https://stackoverflow.com/questions/4165452/how-to-efficiently-manage-frequent-schema-changes-using-sqlalchemy">this thread</a> someone pointed me to use <strong>sqlalchemy-migrate</strong> to help with a fast-changing web application using sqlalchemy. 
  However a <a href="https://stackoverflow.com/questions/4165452/how-to-efficiently-manage-frequent-schema-changes-using-sqlalchemy/4165496#4165496">Do It Yourself method</a> was also recommended consisting in manually writing CSV columns for the new database schema, and finally import them. </p>
  
  <p>The problem is that I can't find <strong>real-world examples of sqlalchemy-migrate</strong>. Ressources that I have found <a href="http://truefalsemaybe.com/2008/09/sqlalchemy-migrations/" rel="nofollow noreferrer">at best</a> decribe adding a single column or a column rename. The official documentation essentially describes the API and it's hard to see how to use migrate effectively. From the doc I cannot even know if migrate could <strong>help changing the database engine</strong>, from sqlite to mysql for example, while the DIY solution would to the job.</p>
  
  <p>I really want to see code that would make some <strong>non-trivial transformations of a database schema</strong> and proving that migrate is really a useful tool. </p>
  
  <p>Where can I find good examples/tutorials for sqlalchemy-migrate ? </p>
  
  <p>Thanks !</p>