6. 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.

A. True
B. False

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

A. True
B. False

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8. The UNION clause is used to combine the output from multiple queries together into a single result table.

A. True
B. False

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

A. True
B. False

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10. The most frequently used relational operation, which brings together data from two or more related tables into one resultant table, is called an equi-join.

A. True
B. False

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