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Introduction to Database System

Introduction to Database System
After you _____ a record, many data management the environments require you to issue a command to save the changes you made.

Sort key
Delete
Update
Index

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Introduction to Database System
In an enterprise-class database system, business users interact directly with database applications, which directly access the database data.

True
False

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Introduction to Database System
Updating a database means

all of the listed here
revising the file structure
reorganizing the database
modifying or adding record occurrences

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Introduction to Database System
Which two files are used during operation of the DBMS?

data dictionary and query language
query language and utilities
None of the listed here
data dictionary and transaction log

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Introduction to Database System
The DBMS that is most difficult to use is ________ .

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

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Introduction to Database System
Which of the following refers to an entity in which the identifier of one entity includes the identifier of another entity?

ID-dependent entity
Strong entity
ID-independent entity
Weak entity

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