Converting from Rectangular to Relational Data Base.

摘要

This report describes a program developed for the conversion from rectangular to relational data bases. The programs intent is to facilitate loading some segment of a large rectangular file into a relational data base. Thus large rectangular files which could not easily be maintained as relational data bases could have some subset of interest loaded into a relational data base system, such as Rel English, to take advantage of the more powerful relational query languages. The inputs to the conversion routine are the subset of the rectangular file, basic information about the fields in the records, and prototype commands for loading the relational data base. The output is a file of commands for loading the records into the relational data base. (Author)