John Bartow
john at winhaven.net
Thu Jul 26 13:33:30 CDT 2007
Great points! -----Original Message----- From: accessd-bounces at databaseadvisors.com [mailto:accessd-bounces at databaseadvisors.com] On Behalf Of Robert L. Stewart In a transactional database, all tables have a surrogate, autonumbering primary key. They also have one or more unique indexes on the candidate key or keys. Also, indexes on all foreign key columns. In a data warehouse or data mart, all dimension tables will have a single column primary key inherited from the source primary table. All fact tables will have multiple columns that make up the primary key. There are no snowflakes. It is a true star schema.