What is UNDO_RETENTION?

Are you preparing for IT certification? With practice questions, study notes, interactive quizzes, tips and technical articles, uCertify PrepKits ensure that you get a solid grasp of core technical concepts to ace your certification exam in first attempt.

What is UNDO_RETENTION?

Rating:

UNDO_RETENTION is a parameter in the init.ora initialization parameters file that specifies the time period in seconds for which a system retains undo data for committed transactions. The flashback query can go upto the point of time specified as a value in the UNDO_RETENTION parameter.

The properties of the UNDO_RETENTION parameter are mentioned below:

  • Parameter type - Integer
  • Default value - 900
  • Range of values - 0 to 232 - 1
  • Syntax - ALTER SYSTEM SET UNDO_RETENTION = < seconds >;


Rating:



Other articles

Click here to Article home

MCSE: MCSA, MCTS, MCITP    JAVA Certification: SCJP, SCWCD Cisco Certification: CCNA, CCENT, A+, Network+, Security+

Oracle Certification: OCP 9i, OCP 10g, OCA 9i, OCA 10g, 1Z0-040: Upgrade to OCA 10g Fundamentals I, Oracle Fundamentals II, Admin I, Oracle Admin II, PL/SQL CIW foundation    EC-212-32    CISSP    Photoshop ACE    Adobe Flash ACE
© 2008 uCertify.com. All rights reserved. All trademarks are the property of their respective owners.
 
HACKER SAFE certified sites prevent over 99.9% of hacker crime.