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Question


Which of the following is used to delete the entries in the referenced table when the tuple is deleted in course table?
CREATE TABLE course
( . . .
FOREIGN KEY (dept name) REFERENCES department
. . . );

a.

Delete

b.

Delete cascade

c.

Set null

d.

All of the mentioned

Answer: (b).Delete cascade

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Q. Which of the following is used to delete the entries in the referenced table when the tuple is deleted in course table?

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