Surrogate Key

A surrogate key in a database is a unique identifier for either an entity in the modeled world or an object in the database. The surrogate key is not derived from application data.

Read more about Surrogate Key:  Definition, Surrogates in Practice

Famous quotes containing the words surrogate and/or key:

    “Detachment is the prerogative of an elite; and as the dandy is the nineteenth century’s surrogate for the aristocrat in matters of culture, so Camp is the modern dandyism. Camp is the answer to the problem: how to be a dandy in the age of mass culture.”
    —Susan Sontag (b. 1933)

    “All meanings, we know, depend on the key of interpretation.”
    —George Eliot [Mary Ann (or Marian)