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The IBM mathematician used relational algebra to organize data into linked tables using SQL. The figure is taken from IBM Research, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

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Edgar Codd proposed the relational database model in 1970

The IBM mathematician used relational algebra to organize data into linked tables using SQL

Edgar F. Codd published a landmark paper in 1970 introducing relational database architecture. Instead of storing data in rigid hierarchical trees, Codd proposed storing information in flat tables linked by keys. This conceptual breakthrough led to the development of SQL and form the bedrock of enterprise databases, banking systems, and Web applications.

Where this comes from

IBM Research

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Tags: databases, sql, data

Edgar Codd proposed the relational database model in 1970: the short answers

Where does this come from, and can I check it?: The IBM mathematician used relational algebra to organize data into linked tables using SQL. The figure is taken from IBM Research, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a technology fact?: Yes. It sits on the Technology shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.