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NIELIT Scientist –B Dy -22 Database Quiz-1

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Question 1

If every functional dependency in set E is also in closure of F then this is classified as :

Question 2

Considering relational database, functional dependency between two attributs A and B is denoted by:

Question 3

Which of the following statements is true?

Question 4

A network schema is used to :

Question 5

Consider the following schedule:
r1(a),r2(a),r3(b),w2(a),r4(c),r3(b),r1(b),
r2(b), w1(c), w4(a)
The above schedule is serialized as
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