The checkpoint table is a required component of Replicat.

Replicat maintains its recovery checkpoints in the checkpoint table, which is stored in the target database. Checkpoints are written to the checkpoint table within the Replicat transaction. Because a checkpoint either succeeds or fails with the transaction, Replicat ensures that a transaction is only applied once, even if there is a failure of the process or the database.

To configure a checkpoint table, see Creating a Checkpoint Table in Administering Oracle GoldenGate.