Check boxes vs radio buttons or data insert and update

I’m finding it hard to do this consistently. I have one checkbox which works to store the data in the database using the value of the static value parameter and another one which doesn’t and the code is virtually the same except for the static value. They are not groups. I’m using it basically as a value or no value field. What’s the recommended way to do this so that the checkbox value is retireved and checks or unchecks accordingly.

Thanks,
Rick