title: How to update data of one column for all rows in SqlAlchemy?
body: <p>For single record update, I have tried the following code and it's working.</p>
  
  <pre><code>uid=1
  
  info = Info.query.filter_by(id=uid).first()
  info.sold_status ='1'
  db.session.add(info)
  db.session.commit()
  </code></pre>
  
  <p>Now I want to update one column for multiple rows.
  I have tried:</p>
  
  <pre><code>for row in db.session.query(Uninstall.status).all():
       print row.status
  
  abc=row.status
  abc=uid
  
  db.session.add(row.status)
  db.session.commit()
  </code></pre>
  
  <p>but it's not working.</p>
  
  <p>Thanks in advance :)</p>