www.ThinkITI.com

Home
MCQ
Search
Free Apps
Important
Study Groups
Contact Us
Policy

Home
MCQ
Objective Questions
Engineering
Computer Science
Computer Science Set-1
Databases
24

Databases MCQ with Answers

24) Which of the following contains a complete record of all activity that affected the contents of a database during a certain period off time

Report writer

Query language

Data manipulation language

Transaction log

Answer is:

Transaction log

Databases MCQ with Answers

For more MCQ's Click Here

Related Databases MCQ with Answers

26) Which of the following contains complete record of all activity that affected the contents of a database during a certain period of time

4-GL

d-BASE

Oracle

SQL

Answer is:

d-BASE

27) In tuple relational calculus P1 → P2 is equivalent to

¬ P1 ∨ P2

P1 ∨ P2

P1 ∧ P2

P1 ∧ ¬P2

Answer is:

¬ P1 ∨ P2

28) A logical schema

Is the entire database.

describe data in terms of relational tables and columns, object-oriented classes, and XML tags.

Describes how data is actually stored on disk.

Both (A) and (C)

Answer is:

Is the entire database.

29) Related fields in a database are grouped to form a

Data file

Data record.

Menu.

Bank.

Answer is:

Data record.

Databases MCQ with Answers

For more MCQ's Click Here