Add button to Dash App


I am new to Python and Dash as well. I am trying to build an app that pulls data from a database and stores the table as a pandas dataframe which I display in the Dash App. I want to add a button in the comments column (only if there is no comment added). I am using datatable components and bootstrap components to build the app. I want the button to accept input from the user and save the input in the SQL Server database. Any tips on how I can achieve this functionality.