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Introduction to Database System

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
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

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

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Introduction to Database System
Which command is used to remove an index from the database in SQL?

ROLL BACK INDEX
REMOVE INDEX
DELETE INDEX
DROP INDEX

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Introduction to Database System
A DBMS that combines a DBMS and an application generator is ________ .

IBM's DB2
Microsoft's SQL Server
Oracle Corporation's Oracle
Microsoft's Access

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Introduction to Database System
A large computer information system maintains many different computer files. Which amongst them is called a perpetual file?

Master file
Specialized file
Log file
Update file

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Introduction to Database System
Helping people keep track of things is the purpose of a(n) ________ .

relationship
instance
table
database

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