Learn how to use the rs_address, identity,
and timestamp special datatype columns in replication definitions.
Using the rs_address Datatype
The rs_address special datatype makes a unique subscription resolution technique possible: bitmaps of the rs_address datatype (based on the underlying int datatype) are compared with a bitmask in a subscription’s where clause to determine whether a row should be replicated.
Replicate identity Columns
identity columns store sequential numbers (such as invoice numbers, employee numbers, or record numbers) that are generated automatically. The value of the identity column uniquely identifies each row in a table.