This illustration shows two Multitentant databases, Production CDB, and Test/Development CDB. The Production CDB has three pluggable databases, PRODPDB1, which is read-write, PRODPDB2, which is read-write, and PRODPDB3, which is read-write.

The Test/Development CDB contains 5 pluggable databases: TESTPDB1 (read-write), TESTPDB2 (read-write), TMPDB1 Monday (read-only), TMPDB1 (read-write), and TEST_Monday_Jim (read-write). The TEST_Monday_Jim PDB uses the TMPDB1 Monday as its master, and the TMPDB1 PDB also uses TMPDB1 Monday as its master.

The PRODPDB1 database replicates it changes to the TMPDB1 database using Oracle GoldenGate.