Sequences guarantee valid surrogate key values.
Answer: B
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What Oracle backup and recover file contains user and system data?
Answer: B
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Of the three ways to create an Oracle database, which one is the easiest and most recommended?
Answer: A
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Oracle maintains a System Change Number (SCN) which is a database-wide value that is incremented by Oracle whenever database changes are made.
Answer: A
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Which of the following is not true about indexes?
Answer: D
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When you type into SQL*Plus and press enter, the statement will be finished and executed.
Answer: B
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You can use the DROP statement to remove structures from the database.
Answer: A
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Indexes are created to enforce uniqueness on columns and to enable fast retrieval by column values.
Answer: A
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Oracle does NOT support a CASCADE UPDATE constraint.
Answer: A
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Which statement about sequences is not true?
Answer: D
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