Replication Tables (Transact-SQL)
Applies to: 
SQL Server
A replication topology is supported by replication system tables. When a user database is configured as a Publisher or a Subscriber, replication adds system tables to the database. These tables are removed when a user database is removed from a replication topology. For general rules regarding using system tables, see System Tables (Transact-SQL).
Replication Tables
The following is a list of the system tables used by replication, grouped by database.
Replication Tables in the master Database
Replication Tables in the msdb Database
Replication Tables in the Distribution Database
These tables in the distribution database are used for replicating data from non- SQL Server Publisher. For more information, see Non-SQL Server Publishers.
Replication Tables in the Publication Database
MSmerge_current_partition_mappings
MSmerge_generation_partition_mappings
MSmerge_metadataaction_request
MSmerge_past_partition_mappings
MSpeer_conflictdetectionconfigrequest
Replication Tables in the Subscription Database
MSmerge_current_partition_mappings
MSmerge_generation_partition_mappings
MSmerge_metadataaction_request
See Also
Configure Publishing and Distribution
Disable Publishing and Distribution
Replication Views (Transact-SQL)