This invention relates generally to database servers and computer systems and,
more particularly, describes the mechanism to run transaction operations originating
from a primary server used to replicate data in parallel in a secondary server.
Especially the invention relates to running concurrent or parallel operations in
a secondary server for redundancy, recovery and propagated transactions. This invention
describes how parallel operation in a secondary server improves performance and
availability and how it maintains transaction order and output congruent with the
primary server where transaction operations are originated.