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Introduction to Database System

Introduction to Database System
Which of the following indicates the maximum number of entities that can be involved in a relationship?

Maximum cardinality
ERD
Greater Entity Count (GEC)
Minimum cardinality

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

parent
subtype
instance
child

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

True
False

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Introduction to Database System
Which command is used to remove a table from the database in SQL?

UNATTACH TABLE
DELETE TABLE
ERASE TABLE
DROP TABLE

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Introduction to Database System
Entities can be associated with one another in which of the following?

Relationships
Entities
Attributes
Identifiers

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Introduction to Database System
A compound key

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

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