Databse publishing updated content only

How can i design my database template to publish only the content that was updated? Should I use $db.action value as ‘n’? 

Good Afternoon Nidha
Thank you for your questions and using the Percussion Community forum. I am going to send this question to our Technical Support team and someone will get back to you.

Thank you, Happy Holidays
Brendan

I think you would use the “u” action. 

r - (default) Inserts the row. Deletes it first if it already exists.
n - Inserts the row if it does not already exist.
u - Updates the row if it already exists.
d - Deletes the row if it already exists. Use d for unpublishing.