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Introduction to Database System

Introduction to Database System
Structured Query Language (SQL) is an internationally recognized standard language that is understood by all commercial database management system products.

False
True

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Introduction to Database System
Data security threats include

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

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Introduction to Database System
An ID-dependent entity is an entity whose identifier is a composite identifier where no portion of the composite identifier is an identifier of another entity.

True
False

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Introduction to Database System
Which of the following is NOT a basic element of all versions of the E-R model?

Primary keys
Attributes
Entities
Relationships

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Introduction to Database System
In SQL, which command is used to make permanent changes made by statements issue since the beginning of a transaction?

COMMIT
PACK
ZIP
SAVE

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Introduction to Database System
It is more accurate to define a _____ as a variety of different record types that are treated as a single unit

Flat File
Table
Record
Database
None of these

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