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MCQ

In SQL, which command is used to add a column/integrity constraint to a table

ADD COLUMN

INSERT COLUMN

MODIFY TABLE

ALTER TABLE

None of the above

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MCQ

A multiple-form file management system

lets you define different forms for different operations

lets you create a look-up form with an associated read-only password to prevent access by unauthorized users

both (a) and (b)

allow you to entry data in all the forms

None of the above

Discussion

MCQ

A logical schema

is the entire database

is a standard way of organizing information into accessible parts

describes how data is actually stored on disk

All of the above

None of the above

Discussion

MCQ

When performing a look-up operation using a form

you enter the search value into the form

you look at each form sequentially until you see the one you want

you type the key in an entry line, and the correct form is displayed

All of the above

None of the above

Discussion

MCQ

An Enterprise Resource Planning application is an example of a(n) ________ .

single-user database application

multiuser database application

e-commerce database application

data mining database application

Discussion

MCQ

In SQL, which command is used to select only one copy of each set of duplicable rows

SELECT DISTINCT

SELECT UNIQUE

SELECT DIFFERENT

All of the above

None of the above

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Data Communication and Networking

Miscellaneous or General

Computer Basics

Computer Softwares

History and Generations

CPU and its components

Computer Languages

Computer Hardware

Input Devices

Output Devices

Computer Memory

Digital Logic Gate

Number System

Computer Codes

Operating System

Disk Operating System (DOS)

Database Systems

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Mixed

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