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Introduction to Database System

Introduction to Database System
In an enterprise-class database system, business users interact directly with database applications, which directly access the database data.

True
False

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Introduction to Database System
A maximum cardinality is the maximum number of entity instances that can participate in a relationship instance.

True
False

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Introduction to Database System
In SQL, which of the following is not a data Manipulation Language Commands?

DELETE
UPDATE
SELECT
CREATE

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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
Insert
Look-up
Modify
None of these

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Introduction to Database System
In SQL, the ALTER TABLESPACE command is used

to change storage characteristics
to add/rename data files
All of the listed here
to take a tablespace online/offline

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Introduction to Database System
In SQL, which command is used to select only one copy of each set of duplicable rows

All of these
SELECT UNIQUE
SELECT DIFFERENT
SELECT DISTINCT
None of these

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