title: Save value in uppercase when adding row to database
body: <p>I have three columns in the db table that looks as follow:
  <a href="https://i.stack.imgur.com/LLPlG.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/LLPlG.png" alt="enter image description here"></a></p>
  
  <p>When I add a new row, it should store the value on column <code>fieldname</code> in uppercase. How can I do that?</p>