MANAGING DATABASES WITH ORACLE QUIZ

Which of the following is not true about modifying table columns?

You can drop a column at any time.

You can add a column at any time as long as it is a NULL column.

You cannot increase or decrease the number of decimal places.

You can increase the number of characters in character columns or the number of digits in numeric columns

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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 cannot use the ORDER BY clause in view definitions.

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

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When you type Start FILENAME, the statement in your file will be executed automatically.

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 will let you define Notepad as your default editor, and whenever you type NOTEPAD, SQL*Plus will invoke Notepad.

False

True

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The semicolon terminates a SQL statement (and executes it).

False

True

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Which of the following is NOT an Oracle-supported trigger?

INSTEAD OF

DURING

AFTER

BEFORE

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Oracle allows the ORDER BY clause in view definitions.

False

True

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

Control file

OnLine ReDo file

Datafile

Offline ReDo file

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Of the three ways to create an Oracle database, which one is the easiest and most recommended?

Using the Oracle Database Configuration Assistant.

Using the Oracle-supplied database creation procedures.

None of these

Using the SQL CREATE DATABASE command.

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