• Publications
  • Influence
A relational model of data for large shared data banks
  • E. Codd
  • Medicine, Computer Science
  • CACM
  • 1970
TLDR
A model based on n-ary relations, a normal form for data base relations, and the concept of a universal data sublanguage are introduced and certain operations on relations are discussed and applied to the problems of redundancy and consistency in the user's model. Expand
Extending the database relational model to capture more meaning
  • E. Codd
  • Computer Science
  • ACM Trans. Database Syst.
  • 1 December 1979
TLDR
This paper proposes extensions to the relational model to support certain atomic and molecular semantics, a synthesis of many ideas from the published work in semantic modeling plus the introduction of new rules for insertion, update, and deletion, as well as new algebraic operators. Expand
Relational Completeness of Data Base Sublanguages
  • E. Codd
  • Computer Science
  • Research Report / RJ / IBM / San Jose, California
  • 1972
TLDR
This paper attempts to provide a theoretical basis which may be used to determine how complete a selection capability is provided in a proposed data sublanguage independently of any host language in which the sublanguage may be embedded. Expand
The Relational Model for Database Management, Version 2
  • E. Codd
  • Computer Science
  • 1 April 1990
TLDR
This book describes all the features of the relational model that I now perceive as important for database users, and therefore for DBMS vendors, and contains 30 chapters and two appendixes. Expand
Further Normalization of the Data Base Relational Model
  • E. Codd
  • Computer Science
  • Research Report / RJ / IBM / San Jose, California
  • 1971
A relational model of data for large shared data banks
  • E. Codd
  • Computer Science
  • CACM
  • 1 June 1970
TLDR
A model based on n-ary relations, a normal form for data base relations, and the concept of a universal data sublanguage are introduced and certain operations on relations are discussed and applied to the problems of redundancy and consistency in the user's model. Expand
A Relational Model for Large Shared Data Banks
TLDR
His goal is to describe data, not to build a model of computation (which one would then be expected to prove equivalent to Turing Machines), and the idea of using a relation view of data to avoid ordering dependencies, access path dependencies and other implementation dependencies. Expand
Recent Investigations in Relational Data Base Systems
  • E. Codd
  • Computer Science
  • ACM Pacific
  • 1974
Providing OLAP to User-Analysts: An IT Mandate
TLDR
This paper discusses the coexistence of so-called transaction databases with decision support systems and the argument that the physical design required for acceptable performance of each is incompatible and that therefore, data should be stored redundantly in multiple enterprise databases. Expand
Cellular automata
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