Home
Ask a Question
About
Contact
Advertise
Sitemap

Database MCQ

Home
Translate

Database MCQ Database A relation is a list of tuples.

A relation is a list of tuples.

A relation is a list of tuples.

[A]
True
[B]
False

Answer: B

Learn More :

Share this

Share on Facebook Tweet on Twitter Plus on Google+

« Prev Question

Next Question »

Search your questions here...

Trending Questions

The relational operator that adds all possible pairs of rows from two tables is known as the .... operator.

The relational operator that adds all possible pairs of rows from two tables is known as the .... operator. a. union b. product c. j...
A record consists of a ____.

A record consists of a ____. a. group of files b. character c. collection of related records d. set of one or more fields Answer:...
With SQL, how do you select all the records from a table named "Persons" where the value of the column "FirstName" starts with an "a"?

With SQL, how do you select all the records from a table named "Persons" where the value of the column "FirstName" sta...
___ are the people who use application programs to run the organization's daily operations.

___ are the people who use application programs to run the organization's daily operations. a. Data practitioners b. End users c....
Given a relation R(A.B.C.D). Which of the followings is trivial?

Given a relation R(A.B.C.D). Which of the followings is trivial? [A] A->BCD [B] A->->BCD [C] A->AB [D] A->->AB...
Suppose R is a relation with attributes A1, A2, A3, A4. The only key of R is {A1, A2}. So, how many super-keys do R have?

Suppose R is a relation with attributes A1, A2, A3, A4. The only key of R is {A1, A2}. So, how many super-keys do R have? a. 4 b. 8 ...
Data ____ is defined as "the condition in which all of the data in the database are consistent with the real-world events and conditions."

Data ____ is defined as "the condition in which all of the data in the database are consistent with the real-world events and conditi...
Which of following is never used as a data model?

Which of following is never used as a data model? a. Hierarchical data model b. None of the others c. Graph-based data model d. Tre...
Accurate, relevant, and timely ____ is the key to good decision making.

Accurate, relevant, and timely ____ is the key to good decision making. a. relationships b. information c. processing d. data An...
Suppose that tuple t appears, respectively, x, y, and z times in the relations X, Y, and Z. Let t appear w times in the relation:

Suppose that tuple t appears, respectively, x, y, and z times in the relations X, Y, and Z. Let t appear w times in the relation: X unio...

Blog Archive

June (46)
October (99)
September (57)
August (59)

Label

Database DBMS Chapter 1

Powered by Blogger.

Copyright © 2015 Database MCQ | Term Of Service | Disclaimer | Privacy Policy | DMCA