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Method and apparatus for data rollback

  • US 8,880,480 B2
  • Filed: 01/03/2007
  • Issued: 11/04/2014
  • Est. Priority Date: 01/03/2007
  • Status: Active Grant
First Claim
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1. A method comprising:

  • detecting a failover event for a primary database, where the primary database includes an associated data dictionary;

    performing a failover by transferring database responsibilities from the primary database to a secondary database and includes causing a delay for capturing a snapshot of the data dictionary until a subsequent time to the failover;

    storing, in a redo log, database operations performed on the secondary database from a time of the failover;

    subsequent to the failover, capturing the snapshot of the data dictionary; and

    generating a recreated data dictionary representing a state of the data dictionary at the time of the failover, where the generating includes performing redo operations from the redo log from a time of the capture of the snapshot back to the time of the failover.

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