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Merging database log files through log transformations

  • US 5,890,154 A
  • Filed: 06/06/1997
  • Issued: 03/30/1999
  • Est. Priority Date: 06/06/1997
  • Status: Expired due to Fees
First Claim
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1. A method for constructing a global equivalent database log file using at least two local log files in a parallel or distributed database system comprising the steps of:

  • creating, from each local log file, a list of log entries associated with a database record;

    separating said list of log entries associated with said each local log file into list segments;

    performing actions on said list segments, said actions selected from the group consisting of reducing the number of said list segments and shortening said list segments; and

    merging remaining list segments into a second list.

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