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Advanced SQL

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

True
False

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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.

False
True

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Advanced SQL
Triggers are stored blocks of code that have to be called in order to operate.

False
True

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

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

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Advanced SQL
Outer join is the same as equi-join, except one of the duplicate columns is eliminated in the result table.

False
True

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Advanced SQL
ROLLBACK WORK asks SQL to empty the log file.

False
True

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