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Introduction to SQL

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
SUM, AVG, MIN, and MAX can only be used with numeric columns.

True
False

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Introduction to SQL
To remove duplicate rows from the results of an SQL SELECT statement, the ________ qualifier specified must be included.

DISTINCT
SINGLE
UNIQUE
ONLY

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Introduction to SQL
Indexes may be created or dropped at any time.

True
False

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Introduction to SQL
SQL provides the AS keyword, which can be used to assign meaningful column names to the results of queries using the SQL built-in functions.

True
False

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Introduction to SQL
SQL query and modification commands make up a(n) ________ .

HTML
DDL
DML
XML

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