Database Systems Practice Test 45

DBMS: Selection Operation Quiz Questions and Answers PDF - 45

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The Quiz: A predicate that by satisfying individual simple condition, satisfies the union of all records is called the; "DBMS: Selection Operation" App Download (Free) with answers disjunction condition, conjunction condition, negation condition and a9 condition for online SQL certification courses. Solve query processing questions and answers, Amazon eBook to download free sample for online computer science engineering.

DBMS: Selection Operation Questions and Answers PDF Download: Quiz 45

MCQ 221: A predicate that by satisfying individual simple condition, satisfies the union of all records is called the

A) Conjunction condition

B) Disjunction condition

C) Negation condition

D) A9 condition

MCQ 222: An entity-relationship diagram provides a graphical representation of the

A) Context

B) Framework

C) Schema

D) Modules

MCQ 223: The database user assigns entities to a given entity set, in the type of generalization's constraints

A) Data-defined

B) User-defined

C) System-defined

D) Condition-defined

MCQ 224: If 'A' is null for a particular tuple, then the expression result must also be null for that

A) Expression

B) Attribute

C) Tuple

D) Relation

MCQ 225: A schema is said not to be in a desirable normal form, if its relationship sets are involving

A) One entity set

B) Two entity sets

C) More than two entity sets

D) No entity sets

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