Edgar F. Codd
Edgar Frank "Ted" Codd (August 23, 1923 – April 18, 2003) was an English computer scientist who, while working for IBM, invented the relational model for database management, the theoretical basis for relational databases. He made other valuable contributions to computer science, but the relational model, a very influential general theory of data management, remains his most mentioned achievement.
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“All my humor is based upon destruction and despair. If the whole world were tranquil, without disease and violence, I’d be standing on the breadline right in back of J. Edgar Hoover.”
—Lenny Bruce (1925–1966)