noun
equivalent reference string
A computing term for a string that serves as an equivalent reference, likely used in contexts such as data comparison, hashing, or identifier matching.
データベースでは、等価参照列を使ってレコードを一意に識別することがある。
In databases, an equivalent reference string is sometimes used to uniquely identify records.
A compound of 等価 (equivalent value) + 参照 (reference) + 列 (string/sequence). The exact origin is uncertain; it is a technical term likely coined in computing contexts.