Database Systems MCQs - Chapter 10

Formal Relational Query Languages MCQ (Multiple Choice Questions) PDF - 2

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The MCQ: Projection that allows extension of operations, i.e. arithmetic and string functions to be used in the projection list, is known as; "Formal Relational Query Languages" App Download Android & iOS (Free) with answers extended projection, embedded projection, generalized projection and aggregation projection for online SQL language certification. Practice relational algebra quiz questions, download Apple Book (Free Sample) for computer information science.

Formal Relational Query Languages Questions & Answers PDF Download: MCQ Quiz 2

MCQ 6: The projection that allows extension of operations, i.e. arithmetic and string functions to be used in the projection list, is known as

A) Embedded Projection

B) Extended Projection

C) Generalized Projection

D) Aggregation Projection

MCQ 7: The set difference operation is ensured to be applied over compatible data, just like

A) Selection

B) Projection

C) Dimensional

D) Union

MCQ 8: Aggregate functions can operate over multiple occurrences of a value, known to be

A) multisets

B) multidata

C) multivalue

D) multirelation

MCQ 9: The second extended relational-algebra operation is the

A) Aggregate operation

B) Embedded operations

C) Generalized operation

D) Extended operation

MCQ 10: Attributes are listed that are desired to appear in the result list as a subscript to

A) beta

B) sigma

C) gamma

D) pi

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