Question

“Find all students who have taken all courses offered in the Biology department.” The expressions that matches this sentence is :

a.

Э t ε r (Q(t))

b.

∀ t ε r (Q(t))

c.

¬ t ε r (Q(t))

d.

~ t ε r (Q(t))

Posted under Relational Algebra DBMS

Answer: (b).∀ t ε r (Q(t))

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Q. “Find all students who have taken all courses offered in the Biology department.” The expressions that matches this sentence is :

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