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Introduction to Database System

Introduction to Database System
In a relation, the rows are sometimes called "fields".

True
False

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Introduction to Database System
A command that lets you change one or more fields in a record is

All of these
Modify
None of these
Look-up
Insert

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Introduction to Database System
The physical location of a record is determined by a mathematical formula that transforms a file key into a record location in

an indexed file
a hashed file
a sequential file
a tree file
None of these

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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
All of the listed here
Network schema
Hierarchical schema

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Introduction to Database System
An identifier typically uses more than one attribute.

True
False

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Introduction to Database System
What is the abbreviation used for a software package that permits the users to create, retrieve and maintain records in a database?

DBMS
FMS
EMMS
None of these
DASD

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