How to add details from form to existing row in the access table?
<p>In MS Access, I have a table Student with a primary key studentId and another column Hours. I am creating a new form in access called enterHours. </p>

<p>When I add data in the form and the studentId is not present in the table, it should create a new entry in the table.</p>

<p>But when the studentId is already present in the table, it should add the number of hours to the existing number of hours in the table. How do I do this?</p>