Edgar F. Codd

Contribution

Codd proposed the relational model, organizing data by values and relations rather than navigational storage paths.

The model and its implementation are distinct. System R and SQL involved other researchers who tested how a relational system could work in practice.

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Source assessment: 2026-10-29. 1 of 1 selected claims marked supported by the assessor. This is not a coverage percentage for the article.

Codd proposed the relational model, organizing data by values and relations rather than navigational storage paths.
Assessor finding: supported · historical · Article passage
- The relational database — IBM History — 1970 paper and System R sections
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Content fingerprint: 65d477df52acc99a353904f3139971161a0f1d39feb7cfda18937808a1d53526. An article change invalidates this assessment.

Published by devutils · Updated 2026-10-29 · Original explanatory text; sources retain their own terms.