

Data Models into Database Designs - Technical MCQs
Q1: A primary key should be defined as:A NULL
B NOT NULL.
C Either of the above can be used.
D None of the above are correct.
ANS:B - NOT NULL. Obviously. We don't need to define as not null because whenever it is set the column becomes automatically not null. |


For help Students Orientation
Mcqs Questions
One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.