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Advanced SQL

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

True
False

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

True
False

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Advanced SQL
Which of the following is one of the basic approaches for joining tables?

Subqueries
Natural join
All of these
Union Join

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Advanced SQL
What type of join is needed when you wish to include rows that do not have matching values?

All of these
Outer join
Natural join
Equi-join

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Advanced SQL
When AUTOCOMMIT is set on, changes will be made automatically at the end of each SQL statement.

False
True

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Advanced SQL
Which of the following is true concerning systems information in an RDBMS?

This information can be accessed using SQL.
This information often cannot be updated by a user.
RDBMS store database definition information in system-created tables.
All of these

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