Capturing data changes utilizing data-space tracking

  • US 20060074951A1
  • Filed: 12/07/2005
  • Published: 04/06/2006
  • Est. Priority Date: 07/19/2002
  • Status: Active Grant
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First Claim
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1. A method of reorganizing a database and concurrently providing access to the database for updates, the database including an original data-space having a plurality of original data-elements and a shadow data-space having a plurality of shadow data-elements, the method comprising:

  • copying contents of an original data-element within the original data-space to a shadow data-element within the shadow data-space;

    reorganizing the shadow data-space;

    keeping track of a location of an original data-element that is changed after its contents are copied to the shadow data-element; and

    copying data from the location of the changed original data-element to its corresponding shadow data-element in the reorganized shadow data-space.

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