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Introduction to Database System

Introduction to Database System
A DBMS that combines a DBMS and an application generator is ________ .

Microsoft's SQL Server
Microsoft's Access
IBM's DB2
Oracle Corporation's Oracle

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Introduction to Database System
A compound key

is made up a several pieces of information
is a combination of each unique key
None of these
both (a) and (b)
uniquely identifies an item in a list

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Introduction to Database System
If a piece of data is stored in two places in the database, then

changing the data is one spot will cause data inconsistency
it can be more easily accessed
storage space is wasted
None of these
both (a) and (b)

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Introduction to Database System
Updating a database means

reorganizing the database
revising the file structure
modifying or adding record occurrences
all of the listed here

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Introduction to Database System
Entities of a given type are grouped into a(n):

database.
attribute.
ER
entity class.

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Introduction to Database System
The only reason for the existence of relations is to store instances of functional dependencies.

True
False

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