Managing Databases with Oracle
Which of the following is not true of SQL views?

Oracle views cannot use the ORDER BY clause in view definitions.
Oracle views are created using the standard SQL-92 CREATE VIEW command.
The SQL-92 standard does not allow the use of the ORDER BY clause in view definitions.
Oracle views can by queried.

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Managing Databases with Oracle
An Oracle System Change Number (SCN):

is a value that is incremented whenever database changes are made.
is a value that keeps track of explicit locks.
is a value that is incremented whenever a dirty read occurs.
is incremented whenever a deadlock occurs.

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