title: How to migrate a database from Odoo 9 to Odoo 11?
body: <p>I would like to migrate data from Odoo 9 community to Odoo 11 community. So I want to write some migration scripts. But, currently I have no idea how I can write a migration script like <a href="https://doc.therp.nl/openupgrade/" rel="nofollow noreferrer">OpenUpgrade</a>. </p>
  
  <ul>
  <li><p><strong>How I can use PostreSQL to migrate data from Odoo 9 to Odoo 11.</strong></p></li>
  <li><p><strong>Can I migrate data by connecting OdooRPC of both versions?</strong></p></li>
  </ul>
  
  <p>If anyone have idea where to start then please share your ideas.</p>