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Database Design Using Normalization

Database Design Using Normalization
Most of the time, modification anomalies are serious enough that tables should be normalized into:

1NF.
3NF.
BCNF.
2NF.

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Database Design Using Normalization
One common design problem when designing a database from existing data is the use of a general-purpose remarks column in the received data.

True
False

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Database Design Using Normalization
Using the SQL GROUP BY phrase with a SELECT statement can help detect which of the following problems?

The inconsistent values problem
The multivalue, multicolumn problem
The general-purpose remarks column problem
The missing values problem

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Database Design Using Normalization
Needing to assess the validity of assumed referential integrity constraints on foreign keys is a(n) ________ of normalization.

advantage
either an advantage or disadvantage
neither an advantage nor disadvantage
disadvantage

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Database Design Using Normalization
Normalization ________ data duplication.

eliminates
increases
maximizes
reduces

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Database Design Using Normalization
When building a database from an existing set of tables, we may safely assume that referential integrity constraints have been enforced on the data we are given.

False
True

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