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Introduction to Database System

Introduction to Database System
Database applications are seldom intended for use by a single user.

True
False

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Introduction to Database System
A compound key

is made up a several pieces of information
both (a) and (b)
is a combination of each unique key
uniquely identifies an item in a list
None of these

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Introduction to Database System
In SQL, which command(s) is(are) used to enable/disable all triggers on a table?

ALTER TRIGGERS
All of the listed here
MODIFY TRIGGERS IN TABLE
ALTER TABLE

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Introduction to Database System
If the record management system allows you to edit values before they are recorded on disk, you can

change the name of a field
All of the listed here
change the width of a field
correct spelling changes before they are recorded

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Introduction to Database System
Which command is used to remove a table from the database in SQL?

UNATTACH TABLE
DELETE TABLE
DROP TABLE
ERASE TABLE

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Introduction to Database System
The relational database model was created by E.F. Codd.

False
True

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