Database Management System Practice Test 14

Binary Relational Operation: JOIN and DIVISION MCQ (Multiple Choice Questions) PDF - 14

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Binary Relational Operation: JOIN & DIVISION Questions and Answers PDF Download: Quiz 14

MCQ 66: In the EQUIJOIN condition, the operation which is used to avoid superfluous attribute is classified as

A) ALPHA JOIN

B) NATURAL JOIN

C) UNNATURAL JOIN

D) THETA JOIN

MCQ 67: In linear hashing, the formula of file load factor is

A) l = r⁄ (bfr * N)

B) l = r⁄ (bfr + N)

C) l = r⁄ (bfr - N)

D) l = r⁄ (bfr * 2N)

MCQ 68: The types of partial constraints are

A) total and partial

B) intensive and extensive

C) minimum and maximum

D) floating and string

MCQ 69: The attributes which have only one value for a specific entity are called

A) multi-valued attributes

B) single valued attributes

C) atomic attributes

D) diatomic attributes

MCQ 70: The Boolean expression used in the SELECT operation consists of clauses such as

A) attribute name

B) constant value

C) comparison operators

D) all of above

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