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Value-instance-connectivity computer-implemented database

  • US 6,513,041 B2
  • Filed: 12/01/2000
  • Issued: 01/28/2003
  • Est. Priority Date: 07/08/1998
  • Status: Expired due to Fees
First Claim
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1. A system for storing a plurality of tuples, each tuple comprising at least a first attribute having a first attribute value and a second attribute having a second attribute value, the system comprising:

  • a. a value store storing, for each of the plurality of tuples, a derived value derived from the tuple'"'"'s first attribute value and the tuple'"'"'s second attribute value;

    b. an instance store identifying instances of the derived values in the value store associated with each tuple;

    c. a cardinality store storing information representing frequencies of occurrence of instances of equal value, wherein a particular derived value in the value store associated with a particular instance in the instance store can be derived using the cardinality store.

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