Chris Date (born 1941) is an independent author, lecturer, researcher, and consultant, specializing in

relational database A relational database is a (most commonly digital) database based on the relational model of data, as proposed by E. F. Codd in 1970. A system used to maintain relational databases is a relational database management system (RDBMS). Many relatio ...

theory.

Biography

Chris Date attended High Wycombe Royal Grammar School (U.K.) from 1951 to 1958 and received his BA in Mathematics from

Cambridge University , mottoeng = Literal: From here, light and sacred draughts. Non literal: From this place, we gain enlightenment and precious knowledge. , established = , other_name = The Chancellor, Masters and Schola ...

(U.K.) in 1962. He entered the computer business as a mathematical programmer at Leo Computers Ltd. (London), where he quickly moved into education and training. In 1966, he earned his master's degree at Cambridge, and, in 1967, he joined IBM Hursley (UK) as a

computer programming Computer programming is the process of performing a particular computation (or more generally, accomplishing a specific computing result), usually by designing and building an executable computer program. Programming involves tasks such as anal ...

instructor. Between 1969 and 1974, he was a principal instructor in IBM's European education program. While working at IBM he was involved in technical planning and design for the IBM products SQL/DS and

DB2 Db2 is a family of data management products, including database servers, developed by IBM. It initially supported the relational model, but was extended to support object–relational features and non-relational structures like JSON and ...

. He was also involved with

Edgar F. Codd Edgar Frank "Ted" Codd (19 August 1923 – 18 April 2003) was an English computer scientist who, while working for IBM, invented the relational model for database management, the theoretical basis for relational databases and relational databa ...

’s

relational model The relational model (RM) is an approach to managing data using a structure and language consistent with first-order predicate logic, first described in 1969 by English computer scientist Edgar F. Codd, where all data is represented in terms of tup ...

for database management. He left IBM in 1983 and has written extensively of the relational model, in association with

Hugh Darwen Hugh Darwen is a computer scientist who was an employee of IBM United Kingdom from 1967. to 2004, and has been involved in the development of the relational model. Work From 1978 to 1982 he was a chief architect on Business System 12, a dat ...

. As of 2007 his book ''An Introduction to Database Systems'', currently in its 8th edition, has sold well over 700,000 copies not counting translations, and is used by several hundred colleges and universities worldwide. He is also the author of many other books on

data management Data management comprises all disciplines related to handling data as a valuable resource. Concept The concept of data management arose in the 1980s as technology moved from sequential processing (first punched cards, then magnetic tape) to ...

, most notably ''Databases, Types, and the Relational Model'', subtitled and commonly referred to as ''The Third Manifesto'', currently in its third edition (note that earlier editions were titled differently, but maintained the same subtitle), a proposal for the future direction of

DBMS In computing, a database is an organized collection of data stored and accessed electronically. Small databases can be stored on a file system, while large databases are hosted on computer clusters or cloud storage. The design of databases span ...

Works

Chris Date is the author of several books, including: * ''An Introduction to Database Systems'', 2004, * ''A Guide to the SQL standard, 4th ed.'', Addison Wesley, USA 1997, * ''Databases, Types, and the Relational Model, The Third Manifesto'' (with

), 2007, * ''Temporal Data & the Relational Model'', 2003, * ''Database in Depth: Relational Theory for Practitioners'', 2005, * Several volumes of ''Relational Database Writings'': , , , . * ''What Not How: The Business Rules Approach to Application Development'', 2000, * ''The Database Relational Model: A Retrospective Review and Analysis'', 2001, * ''SQL and Relational Theory, 2nd Edition: How to Write Accurate SQL Code'', 2011, . In recent years he has published articles with

Fabian Pascal Fabian Pascal is a Romanian-American consultant to large software vendors such as IBM, Oracle Corporation, and Borland, but is better known as an author and seminar speaker. Born in Romania, Pascal lives in the San Francisco, CA area of the US ...

at Database Debunkings.

References

{{DEFAULTSORT:Date, Christopher IBM employees Database researchers 1941 births Living people People from Watford People educated at the Royal Grammar School, High Wycombe

Biography

Works

See also

References