Database Systems Practice Test 421

SQL Data Types and Schemas Quiz Questions and Answers PDF - 421

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The Quiz: A data structure that allows the database system to find tuples in the relation that have a specified value for the attribute, is known as; "SQL Data Types and Schemas" App Download (Free) with answers trees, array, indexing and stacking to learn certification courses online. Solve sql concepts and queries questions and answers, Amazon eBook to download free sample for software engineering online courses.

SQL Data Types and Schemas Questions and Answers PDF Download: Quiz 421

MCQ 2101: A data structure that allows the database system to find tuples in the relation that have a specified value for the attribute, is known as

A) Array

B) Trees

C) Indexing

D) Stacking

MCQ 2102: When values for multiple dimensions are fixed, the operation of slicing can be known as

A) Rollup

B) Rolldown

C) Slicing

D) Dicing

MCQ 2103: If a log force is required, the request is sent over to

A) Database writer process

B) Lock manager processes

C) Log writer process

D) Log process

MCQ 2104: The Cartesian product of two relations r1 andr2 is represented as

A) r1 ^ r2

B) r1 ? r2

C) r1 & r2

D) r1 % r2

MCQ 2105: Any attribute that is present in the having clause without being aggregated must appear in the

A) Group by clause

B) Select clause

C) Where clause

D) Distinct clause

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