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Database management system with a multiple-level cache arrangement

  • US 20020112123A1
  • Filed: 02/09/2001
  • Published: 08/15/2002
  • Est. Priority Date: 02/09/2001
  • Status: Active Grant
First Claim
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1. A method for storing data in a multiple-level cache arrangement, comprising the steps of:

  • initially storing all data in a secondary cache;

    receiving requests for data;

    moving requested data from said secondary cache to a primary cache, wherein when subsequent requests for data are received, the primary cache is searched before the secondary cache; and

    periodically synchronizing and merging data in said primary cache back into said secondary cache to refresh said primary cache and remove stale information.

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