Normalized data base structure: a brief tutorial

  • Authors:
  • E. F. Codd

  • Affiliations:
  • IBM Research Laboratory, San Jose, California

  • Venue:
  • SIGFIDET '71 Proceedings of the 1971 ACM SIGFIDET (now SIGMOD) Workshop on Data Description, Access and Control
  • Year:
  • 1971

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Abstract

Casual and other users of large formatted data bases need a simple tabular (relational) view of the data rather than a network or tree-structured view. This paper illustrates the removal of repeating groups, hierarchic and plex structures, and cross-referencing structures. Finally, the simplification of data base relations by normalization is discussed.