An External Schema Facility for CODASYL 1978.

Abstract

As an extension to the CODASYL Data Description Language, a new external schema description language to provide an external schema facility more powerful than that presently offered by CODASYL subschemas is proposed a powerful external schema facility that, in effect, offers applications programmers a virtual data base. Programmers will use records formatted, not like those stored in the common data base, but like the cognitive structures employed in program development. A possible language for external schema definition is introduced.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1978
Accession Number
ADA081784

Entities

People

  • Eric K. Clemons

Tags

Communities of Interest

  • Counter IED
  • Human Systems

DTIC Thesaurus Topics

  • Application Software
  • Classification
  • Computer Programming
  • Computer Science
  • Data Reduction
  • Databases
  • Electronics Laboratories
  • Engineering
  • Hierarchies
  • Information Science
  • Information Systems
  • Language
  • Military Research
  • Models
  • Productivity
  • Programming Languages
  • Standards

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