MANAGING DATABASES WITH ORACLE QUIZ

Oracle allows the ORDER BY clause in view definitions.

True

False

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You have linked SQLPlus to an external text editor. To invoke the text editor for use within SQLPlus, which command do you use?

Open [FileName]

Show [FileName]

Edit [FileName]

Alter [FileName]

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What Oracle backup and recover file contains user and system data?

OnLine ReDo file

Control file

Datafile

Offline ReDo file

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What type of failure occurs when Oracle fails due to an operating system or computer hardware failure?

Rollback failure

Instance Failure

Media Failure

Application failure

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The only time that case matters is inside quotation marks of strings.

True

False

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When you type into SQL*Plus and press enter, the statement will be finished and executed.

True

False

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Oracle directly supports the definition of surrogate keys.

False

True

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Which of the following is not true of SQL views?

Oracle views can by queried.

The SQL-92 standard does not allow the use of the ORDER BY clause in view definitions.

Oracle views are created using the standard SQL-92 CREATE VIEW command.

Oracle views cannot use the ORDER BY clause in view definitions.

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Which of the following is not true about indexes?

Indexes are created to enforce uniqueness on columns.

Columns that are frequently used with equal conditions in WHERE clauses are good candidates for indexes.

Indexes are created to enable fast retrieval by column values.

Indexes are created with the ALTER TABLE command.

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The default extension for SQL*Plus is .sql.

True

False

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