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Introduction to Database System

Introduction to Database System
Keys made up of two or more attributes are called composite keys.

False
True

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Introduction to Database System
A relation in this form is free of all modification anomalies.

First normal form
Third normal form
Domain/key normal form
Second normal form

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Introduction to Database System
You have run an SQL statement that asked the DBMS to display data in a table named USER_TABLES. The results include columns of data labeled "TableName," "NumberOfColumns" and "PrimaryKey." You are looking at ________ .

indexes
user data
A report
metadata

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Introduction to Database System
Two files may be joined into a third file if

both (b) and (c)
they have a field in common
they have no records with the same value in the common field
None of these
they have a row in common

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Introduction to Database System
Which of the following is a type of DBMS software?

report writer
query language
database manipulation language
All of these
utilities

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Introduction to Database System
Relations are categorized into normal forms according to the referential integrity constraints that they have.

True
False

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