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Advanced SQL

Advanced SQL
A correlated subquery is where the outer query depends on data from the inner query.

False
True

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Advanced SQL
Which of the following statements is true concerning subqueries?

Cannot return the same result as a query that is not a subquery.
Does not start with the word SELECT.
All of these
Involves the use of an inner and outer query.

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Advanced SQL
What type of join is needed when you wish to return rows that do have matching values?

Outer join
All of these
Equi-join
Natural join

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Advanced SQL
There should be one condition within the WHERE clause for each pair of tables being joined.

False
True

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Advanced SQL
A transaction is the complete set of closely related update commands that must all be done, or none of them done, for the database to remain valid.

True
False

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Advanced SQL
A function returns one value and has only output parameters.

True
False

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