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QUERY CONDITIONS HAVING FILTERED FIELDS WITHIN A DATA ABSTRACTION ENVIRONMENT

  • US 20080319969A1
  • Filed: 09/04/2008
  • Published: 12/25/2008
  • Est. Priority Date: 02/26/2002
  • Status: Active Grant
First Claim
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1. A computer-implemented method, comprising:

  • receiving an abstract query including an abstract query condition comprising a plurality of logical fields, wherein the abstract query is composed using a set of logical fields defined in an abstraction model that models underlying physical data in a manner making a schema of the physical data transparent to a user of the abstraction model; and

    upon determining that all of the plurality of logical fields are defined on the basis of the same name column and the same value column of the underlying physical data;

    based on the abstraction model, transforming the abstract query to generate an executable query, wherein the abstract query condition is reflected in a single sub-query of the executable query; and

    executing the executable query to produce a set of query results.

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