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Introduction to Database System

Introduction to Database System
Each of data files has a _____ that describe the way the data is stored in the file.

File structure
Database
Fields
Records

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Introduction to Database System
An operation that will increase the length of a list is

All of the listed here
Insert
Modify
Look-up

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Introduction to Database System
A subtype entity is a special case of another entity called a supertype entity.

True
False

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Introduction to Database System
A database has a built-in capability to create, process and administer itself.

True
False

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Introduction to Database System
Given the functional dependency R → (S,T) , then it is also true that R → S.

False
True

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Introduction to Database System
After you _____ a record, many data management the environments require you to issue a command to save the changes you made.

Index
Sort key
Delete
Update

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