McqMate
Sign In
Hamberger menu
McqMate
Sign in
Sign up
Home
Forum
Search
Ask a Question
Sign In
McqMate Copyright © 2025
→
Computer Science Engineering (CSE)
→
DataBase Management System (DBMS)
→
The Primary key must be
Q.
The Primary key must be
A.
non null
B.
unique
C.
option a or b
D.
option a and b
Answer» D. option a and b
891
0
Do you find this helpful?
5
View all MCQs in
DataBase Management System (DBMS)
Discussion
No comments yet
Login to comment
Related MCQs
The relation with the attribute which is the primary key is referenced in another relation. The relation which has the attribute as a primary key is called
The relation with the attribute which is the primary key is referenced in another relation. The relation which has the attribute as a primary key is called ______________
The relation with the attribute which is the primary key is referenced in another relation. The relation which has the attribute as primary key is called
State true or false i) A candidate key is a minimal super key. ii) A candidate key can also refer to as surrogate key.
If every non-key attribute is functionally dependent on the primary key, the relation will be in
If every non-key attribute is functionally dependent on the primary key, the relation will be in
A primary key is combined with a foreign key creates
If every non-key attribute is functionally dependent primary key, then the relation will be in
Which key is referencing a primary key in a table:
If every non-key attribute is functionally dependent on the primary key, then the relation will be in:
