superkey
(databases) Any set of attributes of a relation variable (relvar) that serve to identify a single tuple or row, no other tuple having the same value for every attribute in the set.
Archaic form of Mozarabic.
A native or inhabitant of Odessa, a city in Ukraine.
A surname.
リレーションスキーマを設計する際は、各スーパーキー（単一のタプルを一意に識別する属性の集合）が行を識別して重複を防げるようにしてください。
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