Last Updated:2025/11/29

During normalization, a transitive dependency can cause update anomalies when a non-key attribute depends on another non-key attribute that in turn depends on the primary key.

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During normalization, a transitive dependency can cause update anomalies when a non-key attribute depends on another non-key attribute that in turn depends on the primary key.

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正規化の過程では、主キーに対して別の非キー属性を介して依存している属性(推移的関数従属)が更新異常を引き起こすことがある。

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