Deciding Which Replicat Method to Use

The Replicat process applies replicated data to an Oracle target database.

For an Oracle target database, you can run Replicat in parallel, non-integrated or integrated mode. Oracle recommends that you use the parallel Replicat unless a specific feature requires a different type of Replicat.

The following table lists the features supported by the respective Replicats.

Feature	Parallel Replicat	Integrated Replicat	Coordinated Replicat	Classic Replicat
Batch Processing	Yes	Yes	Yes	Yes
Barrier Transactions	Yes	Yes	Yes	No
Dependency Computation	Yes	Yes	No	No
Auto-parallelism Note: Auto-parallelism is disabled, by default. Only four threads are used in the default settings. If you want to change Replicat to use `MIN_PARALLELISM` and `MAX_PARALLELISM` then auto-parallelism is used.	Yes	Yes	No	No
DML Handler	Yes, Integrated mode	Yes	No	No
Procedural Replication	Yes, used for integrated Parallel Replicat (iPR)	Yes	No	No
Auto CDR	Yes, used by iPR only	Yes	No	No
Dependency-aware Transaction Split	Yes	No	No	No
Cross-RAC-node Processing	Yes	No	Yes	No
`ALLOWDUPTARGETMAP` See `ALLOWDUPTARGETMAP \| NOALLOWDUPTARGETMAP`	No. Oracle Database with iPR	No, Oracle Database	Yes	Yes