Erin Ramsay (3/20/2013)
As a follow-up example.
I have a table, call it tableA, that contains 1 million rows on my publisher and uses 103 MEGs of data space.
tableA in the subscriber database also contains 1 million rows and uses 11 GIGS of data space.
Neither the publisher or the subscriber tables have indexes or primary keys. They are structurally identical.
Transactional replication requires primary key.