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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 of a given type are grouped into a(n):

entity class.
attribute.
ER
database.

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Introduction to Database System
The Management Information system (MIS) structure with one main computer system is called a

centralized MIS structure
decentralized MIS structure
distributed MIS structure
hierarchical MIS structure

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Introduction to Database System
A top-to-bottom relationship among the items in a database is established by a

Relational schema
Network schema
Hierarchical schema
All of the listed here

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Introduction to Database System
A list consists of last names, first names, addresses, and pin codes if all people in the list have the same last and the same pin code, a useful key would be

All of these
a compound key consisting of the first name and the last name
the last name
None of these
the pin code

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Introduction to Database System
A recursive relationship is a relationship between an entity and ________ .

itself
an archetype entity
a subtype entity
an instance entity

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