Database Systems Practice Test 312

Relational Databases Multiple Choice Questions (MCQ) PDF - 312

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Relational Databases Questions and Answers PDF Download: Quiz 312

MCQ 1556: Most commercial relational database systems employ the language

A) C++

B) Java

C) SQL

D) DB2

MCQ 1557: The first subquery of the recursive view that is non-recursive is called as the

A) Absolute query

B) Base query

C) Nonrecurring query

D) General query

MCQ 1558: Magnetic tapes were developed for data storage over the period

A) 1940s-1950s

B) 1950s-1960s

C) 1960s-1965s

D) 1960s-1970s

MCQ 1559: In a selection statement, the predicate appears as a subscript to

A) epsilon

B) zeta

C) sigma

D) delta

MCQ 1560: The command that all instructors with salary over $100,000 receive a 3 percent raise, would be written as

A) update instructor
set salary=salary * 1.03
where salary > 100000;

B) update instructor
set salary=salary * 1.03
where salary <>=100000;

C) update in instructor
set salary=salary * 1.03
where salary >=100000;

D) update into instructor
set salary=salary * 1.03
where salary >=100000;

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