How to check if a double is null?

Question

I\'m querying a database and some of the results I\'m getting are null. I\'m setting these values to a variable with a datatype of double. Let\'s call the variable \"results

Answer 1

To say that something "is null" means that it is a reference to the null value. Primitives (int, double, float, etc) are by definition not reference types, so they cannot have null values. You will need to find out what your database wrapper will do in this case.