Data analysis system using virtual databases

CAFC
  • US 5,806,062 A
  • Filed: 10/17/1995
  • Issued: 09/08/1998
  • Est. Priority Date: 10/17/1995
  • Status: Expired due to Term
First Claim
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1. A data processing apparatus comprising:

  • a plurality of query operators, each of said query operators configured to receive a first virtual data base having a schema, for processing data in said virtual database, and for outputting a second virtual database reflecting said processing and having said schema; and

    means for combining at least two of said query operators to create an application.

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