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Method and apparatus for conversion of database data into a different format on a field by field basis using a table of conversion procedures

  • US 5,493,671 A
  • Filed: 06/04/1993
  • Issued: 02/20/1996
  • Est. Priority Date: 06/04/1993
  • Status: Expired due to Term
First Claim
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1. A method of data conversion for use with a digital data processing system of the type havingfirst file storage means for storing a first relational database, said first relational database including a plurality of digital records representing information used by a first selected version of a computer program,second file storage means capable of storing a second relational database, said second relational database including a plurality of digital records representing at least a portion of said information for use by a second selected version of said computer program,said data conversion apparatus comprisingA. a file management step for generating and storing in said second relational database a plurality of digital records for use by said second selected version of said computer program, wherein each such generated digital record includes at least selected information from a corresponding digital record of said first relational database,B. said file management step including a conversion step for generating said digital records for storage in said second relational database by converting at least selected information contained in the corresponding digital record of said first relational database, wherein said conversion is a function of (i) the identity of said first selected version of said computer program, and (ii) the identity of said second selected version of said computer programC. said conversion step includes the steps ofaccessing a selected entry in a table of entries, each storing a procedure-representative signal representative of procedure for converting information contained in at least a component of a digital record of said first relational database to information contained in at least one corresponding component of a digital record of said second relational database, said entry being selected as a function of the identities of said selected versions of said computer program with which said first and second relational databases are associated, andii) executing the procedure represented by the procedure-representative signal stored in said selected entry to perform said conversion.

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