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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
Entities use identifiers while tables use keys.

True
False

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Introduction to Database System
In the relational model, relationships between relations or tables are created by using:

determinants.
foreign keys.
candidate keys.
composite keys.

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Introduction to Database System
In a one-to-many relationship, the entity that is on the one side of the relationship is called a(n) ________ entity.

child
subtype
instance
parent

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Introduction to Database System
Entity instances are associated by relationship classes.

True
False

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Introduction to Database System
Long-range planning report produced in an MIS are primarily designed for

top management
All of these
lower management
middle management
None of these

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