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参照整合性
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Wikipedia definition
1. Referential integrity​Referential integrity is a property of data which, when satisfied, requires every value of one attribute (column) of a relation (table) to exist as a value of another attribute in a different (or the same) relation (table). For referential integrity to hold in a relational database, any field in a table that is declared a foreign key can contain only values from a parent table's primary key or a candidate key.
Read “Referential integrity” on English Wikipedia
Read “参照整合性” on Japanese Wikipedia
Read “Referential integrity” on DBpedia

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