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Introduction to Database System

Introduction to Database System
A relation is in this form if it is in BCNF and has no multivalued dependencies:

domain/key normal form.
third normal form.
fourth normal form.
second normal form.

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Introduction to Database System
Which of the following is a serious problem of file management systems?

difficult to update
program dependence
data redundancy
lack of data independence
All of these

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Introduction to Database System
A set of programs that handle a firm's data base responsibilities is called a

Data Management System (DMS)
Data Base Management System (DBMS)
None of these
Data Base Processing System (DBPS)
All of these

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Introduction to Database System
If attribute A determines both attributes B and C, then it is also true that:

A →
B →
(B,C) →
C →

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Introduction to Database System
In SQL, which command is used to changes data in a table?

BROWSE
APPEND
UPDATE
INSERT

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Introduction to Database System
If you want to organize a file in multiple ways, it is better to _____ the data rather than to sort it.

None of these
Sort Key
Delete
Index
Update

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