Null values affect:
A) simple conditions involving comparison operators
B) compound conditions involving logical operators
C) aggregate calculations and grouping
D) all of the above

Question

Quizplus · Accepted Answer

Null values can affect all of the above cases. In simple conditions, a null value can cause unexpected results as null is neither true nor false. In compound conditions, null can make a logical operation unpredictable. In aggregate calculations and grouping, null values can exclude an entire row or change the calculation result. Therefore, option D is the correct answer.

Null Values Affect