INGRES relational database system

E61025

relational database management system software system

INGRES relational database system is an influential early relational DBMS developed at the University of California, Berkeley, that pioneered many concepts and technologies later adopted by commercial database systems.

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All labels observed (6)

Label	Occurrences
INGRES relational database system canonical	3
Ingres DBMS engine	1
Ingres relational database management system	1
Ingres relational database system	1
Ingres research database system	1
open source Ingres / Actian X	1

How this entity was disambiguated

This entity first appeared as the object of triple T488047 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: INGRES relational database system
Context triple: [ACM Software System Award, notableRecipient, INGRES relational database system]

A. Database System Concepts
Database System Concepts is a widely used foundational textbook in computer science that introduces the principles, design, and implementation of modern database systems.
B. Xanadu hypertext system
The Xanadu hypertext system is an early, visionary hypertext project conceived by Ted Nelson that aimed to create a universal, bidirectionally linked, non-destructive document publishing and versioning system.
C. IBM DB2
IBM DB2 is a family of enterprise-grade relational database management systems developed by IBM, widely used for high-performance, scalable data storage and transaction processing across mainframe, distributed, and cloud environments.
D. SIGMOD
SIGMOD is a leading ACM special interest group focused on the research and development of data management and database systems.
E. UCSD p-System
UCSD p-System is a portable operating system and programming environment based on the Pascal language and p-code virtual machine, widely used in the late 1970s and early 1980s across multiple hardware platforms.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: INGRES relational database system
Target entity description: INGRES relational database system is an influential early relational DBMS developed at the University of California, Berkeley, that pioneered many concepts and technologies later adopted by commercial database systems.

A. Database System Concepts
Database System Concepts is a widely used foundational textbook in computer science that introduces the principles, design, and implementation of modern database systems.
B. Xanadu hypertext system
The Xanadu hypertext system is an early, visionary hypertext project conceived by Ted Nelson that aimed to create a universal, bidirectionally linked, non-destructive document publishing and versioning system.
C. IBM DB2
IBM DB2 is a family of enterprise-grade relational database management systems developed by IBM, widely used for high-performance, scalable data storage and transaction processing across mainframe, distributed, and cloud environments.
D. SIGMOD
SIGMOD is a leading ACM special interest group focused on the research and development of data management and database systems.
E. UCSD p-System
UCSD p-System is a portable operating system and programming environment based on the Pascal language and p-code virtual machine, widely used in the late 1970s and early 1980s across multiple hardware platforms.
F. None of above. chosen

Statements (49)

Predicate	Object
instanceOf	relational database management system ⓘ software system ⓘ
academicAdvisor	Michael Stonebraker ⓘ
academicField	computer science ⓘ
academicProjectAt	University of California, Berkeley ⓘ
basedOn	relational model ⓘ
commercializedBy	Ingres Corporation ⓘ Relational Technology Inc. ⓘ
countryOfOrigin	United States ⓘ linked to: United States of America
developer	Eugene Wong ⓘ Michael Stonebraker ⓘ UC Berkeley Computer Science Department ⓘ linked to: Department of Electrical Engineering and Computer Sciences, UC Berkeley University of California, Berkeley ⓘ
feature	client-server architecture ⓘ concurrency control ⓘ embedded query language support ⓘ integrity constraints ⓘ logging and recovery ⓘ query optimizer ⓘ relational algebra-based query processing ⓘ transactions ⓘ views ⓘ
hasComponent	catalog manager ⓘ query processor ⓘ storage manager ⓘ transaction manager ⓘ
hasSuccessor	Postgres relational database system ⓘ
implements	QUEL query language ⓘ SQL-like query language ⓘ
influenced	Ingres Corporation commercial products ⓘ Microsoft SQL Server ⓘ linked to: SQL Server Postgres ⓘ linked to: PostgreSQL Sybase ⓘ open source Ingres / Actian X ⓘ linked to: INGRES relational database system relational database industry ⓘ
inspiredBy	System R ⓘ
license	initially academic / research distribution ⓘ
notableFor	influencing commercial relational databases ⓘ pioneering relational DBMS concepts ⓘ
notablePublication	ACM SIGMOD and VLDB papers describing INGRES ⓘ
operatingSystem	DEC UNIX variants ⓘ UNIX ⓘ linked to: Unix VAX/VMS ⓘ linked to: VMS
programmingLanguage	C ⓘ
researchArea	database systems ⓘ relational databases ⓘ
startDate	early 1970s ⓘ
usedIn	early commercial applications ⓘ university research projects ⓘ

How these facts were elicited