title: Surrogate keys in NoSQL data model
body: <p>We are trying to migrate existing RDBMS to NOSQL database. Since we have concepts of surrogate keys in data warehousing, how do we handle those in terms of NOSQL databases?
  What are the good practices in NOSQL database when it comes to migration of existing RDBMS to NOSQL database? 
  We are looking for Accumulo, Cassandra or Hbase implementation.
  Please help</p>