Question

Which of the following statement is incorrect? (a) Every table must have a primary key. (b) Primary key can be combination of fields. (c) Data type of Primary key and Foriegn key should be same. (d) Names of Primary key and Foriegn key should be same.

Answer 1

"Option (d) Names of Primary key and Foriegn key should be same.

Option d statement is incorrect. Because Primary key name and the foreign key name need not be same, they can have different names.

Every table can have a primary key. And the primary key can be single field or a combination of fields.

But the datatype of the primary key and the foreign key should be same, and should not be different."

Answer 2

Answer:

(d)NAMES OF PRIMARY KEY AND FOREIGN KEY SHOULD BE SAME THIS IS THE ANSWER