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Database Design Using Normalization

Database Design Using Normalization
We use the SQL construct COUNT(*) to count the number of rows in a table.

True
False

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

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

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Database Design Using Normalization
When assessing the table structure of an acquired set of tables with data, counting the number of table rows is (part of) the:

fourth step.
first step.
second step.
third step.

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Database Design Using Normalization
One common design problem when designing a database from existing data is the use of a single cell in one column to store multiple values of an attribute.

True
False

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Database Design Using Normalization
Normalization requires programmers to write more complex SQL.

True
False

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