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Introduction to Database System

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
Update
Delete

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Introduction to Database System
An entity is something that can be identified in the user's work environment; something that the users want to track.

True
False

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

None of these
All of these
Insert
Modify
Look-up

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Introduction to Database System
The functional dependency R → S means that the value of S can be determined when we are given a value of R.

True
False

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Introduction to Database System
The DBMS ranked as being the "easiest to use" in the text is Oracle Corporation's Oracle.

True
False

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Introduction to Database System
In SQL, which command is used to select data in rows and column from one or more tables?

BROWSE
CHOOSE
None of these
SELECT
LIST

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