[KongchangAI]
Unverified50% confidenceFactExact time

关系模型由Edgar F. Codd于1970年在IBM工作期间发表论文提出,并因此获得1981年图灵奖

1
Sources
50%
Confidence
Long-term
Relevance
8/23/2026
First Seen

Sources

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Stable URI
https://kongchang.com/claim/789756
API
curl https://kongchang.com/api/v1/knowledge/claims/789756
MCP
get_claim(id=789756)