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Introduction to Database System

Introduction to Database System
Which of the following is a database administrator's function?

All of the listed here
database design
backing up the database
performance monitoring

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Introduction to Database System
Which of the following products was an early implementation of the relational model developed by E.F. Codd of IBM?

R:base
dBase-II
DB2
IDMS

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Introduction to Database System
It is more accurate to define a _____ as a variety of different record types that are treated as a single unit

Database
Table
Flat File
None of these
Record

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Introduction to Database System
1:1, 1:N and N:M relationships are also known as HAS-A relationships.

True
False

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Introduction to Database System
Which of the following is not a restriction for a table to be a relation?

The columns must be ordered.
No two rows in a table may be identical.
The cells of the table must contain a single value.
All of the entries in any column must be of the same kind.

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Introduction to Database System
An attribute is a(n):

key of a table.
column of a table.
two dimensional table.
row of a table.

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