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Introduction to Database System

Introduction to Database System
The files stored on a secondary stage device are composed of a hierarchy of data. What does a record in a file contain?

Characters
Data field
Bits
None of the listed here

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Introduction to Database System
Related fields in a data base are grouped to form

None of these
bank
menu
data file
data record

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Introduction to Database System
The term _____ is sometimes used to refer to a data file in which all the records have the same record format, that is, the same field names, field lengths, and data types.

Database
Flat file
Table
None of these
Data structure

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

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

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Introduction to Database System
The degree of a relationship refers to the number of entity classes in the relationship.

True
False

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Introduction to Database System
In a one-to-many relationship, the entity that is on the one side of the relationship is called a(n) ________ entity.

child
instance
parent
subtype

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