I need a tutorial with examples on Transactional Replication. Can you suggest something on this. How to carry out transactional replication, what are the constraints etc. I have a database in which not all the tables have primary or unique keys. When I opt for transactional replication, the tables which do not have a primary key are not selected. How do I carry out a transactional replication under such a scenario. I want to replicate all the tables irrespective of whether it has a key or not using transactional replication. Would be grateful if you could help on this.