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Database Systems Certification Exam Tests

Database Systems Practice Test 277

View of Data Quiz Questions and Answers PDF - 277

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View of Data Questions and Answers PDF Download: Quiz 277

MCQ 1381: A collection of conceptual tools for describing data, data relationships, data semantics, and consistency constraints, is known as

A) Data organization
B) Data Binding
C) Data schemas
D) Data models

MCQ 1382: SQL includes a Boolean function for testing whether a subquery has

A) Unique tuples
B) Duplicate tuples
C) Tuples
D) Empty tuples

MCQ 1383: For handling, null values are

A) Easy
B) Difficult
C) Complex
D) Preferable

MCQ 1384: The command for deleting the instructor relation having salary range $13,000 and $15,000

A) delete about instructor
where salary between 13000 and 15000;
B) delete from instructor
where salary between 13000 and 15000;
C) delete from instructor
where salary Like 13000 and 15000;
D) delete about instructor where salary Like 13000 and 15000;

MCQ 1385: The cost estimate for the A5 search is same to that for the case

A) A1
B) A2
C) A3
D) A4

Database Systems Exam Prep Tests

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View of Data App (Android & iOS)

View of Data App (Android & iOS)

Database Management System App (Android & iOS)

Database Management System App (Android & iOS)

Operating Systems App (Android & iOS)

Operating Systems App (Android & iOS)

Computer Architecture App (Android & iOS)

Computer Architecture App (Android & iOS)