Database Systems (TODS)


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ACM Transactions on Database Systems (TODS) - Special issue: papers from the international conference on very large data bases: September 22–24, 1975, Framingham, MA, Volume 1 Issue 1, March 1976

ACM transactions on database systems: aim and scope
David K. Hsiao
Pages: 1-2
DOI: 10.1145/320434.320436
Record-keeping and decision-making in industry and government are increasingly based on data stored in computer processable databases. Thus the need for improved computer technology for building, managing, and using these databases is clearly...

The entity-relationship model—toward a unified view of data
Peter Pin-Shan Chen
Pages: 9-36
DOI: 10.1145/320434.320440
A data model, called the entity-relationship model, is proposed. This model incorporates some of the important semantic information about the real world. A special diagrammatic technique is introduced as a tool for database design. An example of...

On the encipherment of search trees and random access files
R. Bayer, J. K. Metzger
Pages: 37-52
DOI: 10.1145/320434.320445
The securing of information in indexed, random access files by means of privacy transformations must be considered as a problem distinct from that for sequential files. Not only must processing overhead due to encrypting be considered, but also...

The design of a rotating associative memory for relational database applications
Chyuan Shiun Lin, Diane C. P. Smith, John Miles Smith
Pages: 53-65
DOI: 10.1145/320434.320447
The design and motivation for a rotating associative relational store (RARES) is described. RARES is designed to enhance the performance of an optimizing relational query interface by supporting important high level optimization techniques. In...

Optimal allocation of resources in distributed information networks
Samy Mahmoud, J. S. Riordon
Pages: 66-78
DOI: 10.1145/320434.320449
The problems of file allocation and capacity assignment in a fixed topology distributed computer network are examined. These two aspects of the design are tightly coupled by means of an average message delay constraint. The objective is to...

A database management facility for automatic generation of database managers
David W. Stemple
Pages: 79-94
DOI: 10.1145/320434.320452
A facility is described for the implementation of database management systems having high degrees of horizontal data independence, i.e. independence from chosen logical properties of a database as opposed to...