REAM: An SQL Based and Extensible Relational Database Management System.

Suguru Kawakami, Takashi Nakayama, Koichi Kashiwabara, Sadayuki Hikita: REAM: An SQL Based and Extensible Relational Database Management System. DASFAA 1989: 166-170
  author    = {Suguru Kawakami and
               Takashi Nakayama and
               Koichi Kashiwabara and
               Sadayuki Hikita},
  editor    = {Sukho Lee and
               Hideko S. Kunii and
               Won Kim and
               In Sup Paik and
               Yahiko Kambayashi},
  title     = {REAM: An SQL Based and Extensible Relational Database Management
  booktitle = {International Symposium on Database Systems for Advanced Applications,
               Seoul, Korea, April 10-12, 1989},
  publisher = {Dept. of Computer Science, KAIST, P.O. Box 150, ChongRyang, Seoul,
               131-650, Korea},
  year      = {1989},
  pages     = {166-170},
  ee        = {db/conf/dasfaa/KawakamiNKH89.html},
  crossref  = {DBLP:conf/dasfaa/89},
  bibsource = {DBLP,}


REAM (RElational dAtabase Management system) is a relational database management system developed by OKI. The relational database has been expected to be widespread thanks to its well-defined mathematical foundation; however, application programmers have suffered from incompatible access interfaces among various so-called relational database systems so far due to the absence of the international standard. The access interface of REAM is an implementation of the internationally standardized SQL. REAM also is extensible in the sense that it may be accessible through other access languages besides SQL. In addition, REAM can be extended to distributed environment. For the sake of extensibility, REAM comes up with a two layered interface structure, the SQL language interface and the REAM kernel interface. By adding another language interface on the top of the REAM kernel interface, REAM easily provides another language interface for application programs. REAM has already had a set of extended functional capability so that it can work as an underlying system for a distributed database system.

This paper presents the system's design decisions and extended functional capability with addressing the problems left in the standardized SQL. Then, the current implementation of REAM is explained.

Copyright © 1989 by The Organizing Commitee of the International Symposium on Database Systems for Advanced Applications. Permission to copy without all or part of this material is granted provided that the copies are not made or distributed for direct commercial advantage, the DASFAA copyright notice and the title of the publication and its date appear, and notice is given that copying is by permission of the Organizing Commitee of the International Symposium on Database Systems for Advanced Applications. To copy otherwise, or to republish, requires a fee and/or special permission from the Organizing Commitee.

ACM SIGMOD Anthology

CDROM Version: Load the CDROM "Volume 2 Issue 2, EDBT, ICDT, MFDBS, DASFAA" and ... DVD Version: Load ACM SIGMOD Anthology DVD 1" and ... BibTeX


Sadayuki Hikita, Suguru Kawakami, Hiromi Haniuda: Database Machine FREND. IWDM 1985: 190-207 BibTeX
Sadayuki Hikita, Suguru Kawakami, Akifumi Sakomoto, Yutaka Matsushita: An Approach for Customizing Services of Database Machines. IWDM 1987: 674-687 BibTeX
C. J. Date: A Critique of the SQL Database Language. SIGMOD Record 14(3): 8-54(1984) BibTeX
Jim Gray, Raymond A. Lorie, Gianfranco R. Putzolu, Irving L. Traiger: Granularity of Locks and Degrees of Consistency in a Shared Data Base. IFIP Working Conference on Modelling in Data Base Management Systems 1976: 365-394 BibTeX
C. J. Date: An Introduction to Database Systems, Volume II. Addison-Wesley 1983, ISBN 0-201-14474-3
Raymond A. Lorie: Physical Integrity in a Large Segmented Database. ACM Trans. Database Syst. 2(1): 91-104(1977) BibTeX
ACM SIGMOD Anthology - DBLP: [Home | Search: Author, Title | Conferences | Journals]
ACM SIGMOD Anthology: Copyright © by ACM (, Corrections:
DBLP: Copyright © by Michael Ley (, last change: Sat May 16 23:05:12 2009