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SQL provides the ________ technique, which involves placing an inner query within the WHERE or HAVING clause of an outer query.


A) grouping
B) joining
C) subquery
D) union

E) A) and D)
F) B) and D)

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It is better not to have a result set identified before writing GROUP BY and HAVING clauses for a query.

A) True
B) False

Correct Answer

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Figuring out what attributes you want in your query before you write the query will help with query writing.

A) True
B) False

Correct Answer

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In order to embed SQL inside of another language, the ________ statement must be placed before the SQL in the host language.


A) GET SQL
B) EXEC SQL
C) RUN SQL
D) SQL SQL

E) A) and B)
F) A) and C)

Correct Answer

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Constraints are a special case of triggers.

A) True
B) False

Correct Answer

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Subqueries can only be used in the WHERE clause.

A) True
B) False

Correct Answer

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User-defined functions can improve system performance because they will be processed as sets rather than individually, thus reducing system overhead.

A) True
B) False

Correct Answer

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