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Introduction to Database System

Introduction to Database System
Structured Query Language (SQL) is an internationally recognized standard language that is understood by all commercial database management system products.

False
True

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Introduction to Database System
A relation is in 5NF when multivalued dependencies are isolated in their own relation.

True
False

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Introduction to Database System
In order to use a record management system

You need to understand the low-level details of how information in stored
None of these
Both (a) and (b)
You need to understand the model the record management system uses.
All of these

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Introduction to Database System
A database management system

Both of the listed here
None of the listed here
allows simultaneous access to multiple files
can do more than a record management system

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Introduction to Database System
When the values in one or more attributes being used as a foreign key must exist in another set of one or more attributes in another table, we have created a(n):

normal form.
transitive dependency.
referential integrity constraint.
insertion anomaly.

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Introduction to Database System
An attribute that names or identifies entity instances is a(n):

relationship.
identifier.
entity.
attribute.

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