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Introduction to SQL

Introduction to SQL
There is an equivalent join expression that can be substituted for all subquery expressions.

False
True

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Introduction to SQL
A SELECT statement within another SELECT statement and enclosed in square brackets ([...]) is called a subquery.

False
True

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Introduction to SQL
The ADD command is used to enter one row of data or to add multiple rows as a result of a query.

True
False

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Introduction to SQL
ON UPDATE CASCADE ensures which of the following?

Data Integrity
Materialized Views
Normalization
All of these

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Introduction to SQL
Count function in SQL returns the number of

columns.
distinct values.
values.
groups.

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Introduction to SQL
The condition in a WHERE clause can refer to only one value.

True
False

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