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Introduction to Database System

Introduction to Database System
The highest level in the hierarchy of data organization is called

data record
database
data bank
data file

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Introduction to Database System
The term _____ is sometimes used to refer to a data file in which all the records have the same record format, that is, the same field names, field lengths, and data types.

Flat file
None of these
Database
Data structure
Table

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Introduction to Database System
In which of the following is a single-entity instance of one type related to many entity instances of another type?

One-to-One Relationship
One-to-Many Relationship
Composite Relationship
Many-to-Many Relationship

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Introduction to Database System
The index consists of

a list of keys
both (a) and (b)
All of these
None of these
pointers to the master list

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Introduction to Database System
If you want to organize a file in multiple ways, it is better to _____ the data rather than to sort it.

Sort Key
Index
Delete
Update
None of these

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Introduction to Database System
A scheme describes

All of these
records and files
record relationships
None of these
data elements

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