IBM® provides two different solutions that you can use to replicate data from and to relational databases: SQL replication and Q Replication. IBM also provides a solution called Event Publishing for converting committed source changes into messages in an XML or delimited format and for publishing those messages across WebSphere® MQ queues to applications.
In SQL Replication, committed source changes are staged in relational tables before being replicated to target systems. In Q Replication, committed source changes are written in messages that are transported through WebSphere MQ message queues to target systems.