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Introduction to Database System

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

False
True

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Introduction to Database System
A list consists of last names, first names, addresses, and pin codes if all people in the list have the same last and the same pin code, a useful key would be

All of these
None of these
a compound key consisting of the first name and the last name
the last name
the pin code

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Introduction to Database System
A set of programs that handle a firm's data base responsibilities is called a

Data Base Management System (DBMS)
Data Base Processing System (DBPS)
Data Management System (DMS)
All of these
None of these

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

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

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Introduction to Database System
The highest level in the hierarchy of data organization is called

data file
data record
database
data bank

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Introduction to Database System
The language used in application programs to request data from the DBMS is referred to as the

DML
All of the listed here
DDL
query language

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