surrogate key

短语

词形变化

surrogate keys 复数 surrogate keys

别名

surrogate

释义与例句

n.
  1. 1.

    A unique identifier for an entity or object, not derived from application data.

    计算机 工程 数学

    We weren't sure which columns in the table would have unique values, so we used a separate surrogate key as the primary key.