surrogate key
原始詞典資料1 筆記錄
這個字我們還沒有寫成教學內容。以下是外部詞典記錄的用法,原文照列,方便你先看懂它的意思。
surrogate keynoun
- 1
computingdatabasesengineeringA unique identifier for an entity or object, not derived from application data.
- We weren't sure which columns in the table would have unique values, so we used a separate surrogate key as the primary key.
資料來源:英文維基詞典 English Wiktionary(CC BY-SA 4.0)。 原文照列,未經改寫。