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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.

Update
Delete
Index
Sort key

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Introduction to Database System
Because it contains a description of its own structure, a database is considered to be ________ .

described
metadata compatible
self-describing
an application program

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Introduction to Database System
An application where only one user accesses the database at a given time is an example of a(n) ________ .

data mining database application
e-commerce database application
multiuser database application
single-user database application

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Introduction to Database System
The primary key is selected from the:

candidate keys.
foreign keys.
determinants.
composite keys.

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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.

False
True

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Introduction to Database System
Which of the following indicates the minimum number of entities that must be involved in a relationship?

Maximum cardinality
Greater Entity Count (GEC)
Minimum cardinality
ERD

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