Database Systems MCQs - Chapter 10

Formal Relational Query Languages Multiple Choice Questions (MCQ) PDF Download - 14

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Formal Relational Query Languages MCQ with Answers PDF Download: Quiz 14

MCQ 66:

In domain relational calculus, all values that appear in tuples of the expression are values from

Views
Domain
Relation
Aggregation

MCQ 67:

A tuple-relational-calculus expression may generate a/an

Finite relation
Infinite relation
Invalid relation
Composite relation

MCQ 68:

A query expression in the tuple relational calculus is done as

{p| P(t)}
{p| t(p)}
{t| P(t)}
{p| t(t)}

MCQ 69:

We can avoid the loss of information by performing

Natural join
Outer join
Full join
Inner join

MCQ 70:

At the result of the left outer join, the present information is from the

Right relation
Left relation
Combination of relations
Left and right relation

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