How to differentiate between 0 and null in an INT column in MySQL

Question

If there is a null value stored in a MySQL INT column, it will return 0 when accessed by technoligies like JPA. If 0 value also stored in the column, how can I differentiate between null and 0?

Answer 1

I can't believe, that it is so.
Change primitive type for object type in your entity(Example: int -> Integer)