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Introduction to Database System

Introduction to Database System
In SQL, which command is used to create a database user?

CREATE USER
All of the listed here
ADD USER TO DATABASE
MK USER

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Introduction to Database System
The following are functions of a DBMS except ________ .

processing data
administrating databases
creating databases
creating and processing forms

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Introduction to Database System
A recursive relationship is a relationship between an entity and ________ .

an archetype entity
a subtype entity
itself
an instance entity

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Introduction to Database System
A functional dependency is a relationship between or among attributes.

True
False

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Introduction to Database System
A computer file can be best described as

a random collection of data items
an orderly collection of data items
None of these
a single data item
a general collection of data items

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Introduction to Database System
Which command is used to select distinct subject (SUB) from the table (BOOK)?

SELECT ALL FROM BOOK
SELECT SUB FROM BOOK
SELECT DISTINCT SUB FROM BOOK
All of these
None of these

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