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Introduction to Database System

Introduction to Database System
In SQL, which command(s) is(are) used to create a synonym for a schema object?

CREATE SYNONYM
All of the listed here
CREATE SCHEMA
CREATE SAME

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Introduction to Database System
Relationship classes are associations between entity classes.

True
False

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Introduction to Database System
The Management Information system (MIS) structure with one main computer system is called a

decentralized MIS structure
centralized MIS structure
hierarchical MIS structure
distributed MIS structure

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Introduction to Database System
Data items grouped together for storage purposes are called a

None of these
record
string
list
title

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Introduction to Database System
Data security threats include

fraudulent manipulation of data
all of the listed here
hardware failure
privacy invasion

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

(B,C) →
B →
A →
C →

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