Importance of Surrogate Key in Data warehousing? Mar 24, 2014 6:43:53 GMT Quote Select PostDeselect PostLink to PostBack to Top Post by Admin on Mar 24, 2014 6:43:53 GMT Surrogate Key is a Primary Key for a Dimension table. Most importance of using it isit is independent of underlying database. i.e. Surrogate Key is not affected by the changes