Functionality:

$-$ Implement functions to perform the following operations:

$$ Add a new product to the database.

$$ Update an existing product's details.

$$ Delete a product from the database.

$$ View all products in the Text widget.

$$ Sort products by name, price, or quantity $($ascending and descending$)$

$-$ Ensure proper input validation for all entry fields.

$-$ Implement error handling with appropriate message boxes.