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System for composing a graphical interface to a relational database which displays a network of query and source icons

  • US 5,428,776 A
  • Filed: 12/22/1993
  • Issued: 06/27/1995
  • Est. Priority Date: 03/12/1991
  • Status: Expired due to Fees
First Claim
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1. A method for graphically composing on a computer system a query of a preexisting independent relational database including a plurality of source tables, comprising steps of:

  • constructing a graphically displayed network of interconnected nodes generically representing source tables and relational query operators, respectively, in response to input from a user, each table node including an output icon representing contents of said represented source table, and each operator node including an output icon representing a table containing the result of said represented relational query operator; and

    automatically generating a query corresponding to a designated node in the network.

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