×

System for relational database retrieval through a link file built to access components of relational tables

  • US 5,513,348 A
  • Filed: 06/09/1995
  • Issued: 04/30/1996
  • Est. Priority Date: 10/17/1989
  • Status: Expired due to Fees
First Claim
Patent Images

1. A data retrieval system for a relational database, for retrieving a relational table in the relational database of parts which form data, said data retrieval system comprising:

  • a link data file managing link data including parts sensors which describe command names assigned to parts located at table item positions of the relational table, attribute sensors which describe command names of parts arranged in a row direction of the relational table corresponding to the command names described by said parts sensors, and mode sensors which describe command names of parts arranged in a column direction of the relational table corresponding to the command names described by said parts sensors;

    an actual data file for managing actual data, of the parts corresponding to the command names, which form the relational table; and

    link processing means for linking said link data file and said actual data file, responsive to a retrieval request which requests retrieval of the relational table, for reading a command name description corresponding to a retrieval condition of the retrieval request by referring to said link data file, and for obtaining the actual data described by said command name description from said actual data file.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×