Deferring Updates in a Relational Data Base System,

Abstract

Deferred updating in a relational data base is a technique which delays the application of updates until a request is made for the value. In general we do not know, a priori, which of the updated values will be retrieved; therefore, it is beneficial to defer the access and computation. This technique promotes an 'update-by-need' policy. The method uses generalization, property inheritance, and procedural attachment for dynamically maintaining the update and query processes. The use of these representational concepts aids in maintaining the structure of the relational model, yet provides opportunities to extend the semantic power of the model. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1981
Accession Number
ADA111157

Entities

People

  • Stephanie Cammarata

Organizations

  • RAND Corporation

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Artificial Intelligence
  • Attachment
  • Cognitive Science
  • Computations
  • Computer Science
  • Computers
  • Corporations
  • Database Management Systems
  • Databases
  • Language
  • New York
  • Relational Database Management Systems
  • Relational Databases
  • Universities

Fields of Study

  • Computer science

Readers

  • Artificial Intelligence
  • Economics
  • Personnel Management and Statistics in the Military and Department of Defense