1. Oracle GoldenGate Classic Architecture Documentation
  2. Instantiate
  3. Instantiating Oracle GoldenGate Using Initial Load
  4. Prerequisites for Initial Load
  5. Create Change-synchronization Groups

Create Change-synchronization Groups

To prepare for the capture and replication of transactional changes during the initial load, create online Extract and Replicat groups. You will start these groups during the load procedure. See Configuring Online Change Synchronization for more information.

Note:

If the load is performed from a quiet source database and will not be followed by continuous change synchronization, you can omit these groups.

Do not start the Extract or Replicat groups until instructed to do so in the initial-load instructions. Change synchronization keeps track of transactional changes while the load is being applied, and then the target tables are reconciled with those changes.

Note:

The first time that Extract starts in a new Oracle GoldenGate configuration, any open transactions will be skipped. Only transactions that begin after Extract starts are captured.