Oracle GoldenGate

Near Zero Downtime Migration and failback with GoldenGate

Oracle GoldenGate allows to migrate Oracle database with Near Zero Downtime and with failback capability. Near Zero Downtime migration means very minimal application switchover downtime. The failback consists to rollback the migration from 19c to 12c. The goal of this(…)

Migrate Oracle Database 9.2.0.6 to Oracle 19c using GoldenGate

When a customer wanted to take the challenge to migrate an oracle database 9.2.0.6 (the prehistory in the Oracle world) to Oracle 19c using Oracle GodenGate, I saw more problems than add value for different reasons:  Oracle 9.2.0.6 database is(…)

Oracle Data Pump Integration for Table instantiation with Oracle Golden Gate

From Oracle GoldenGate (OGG) version 12.2 and above, there is a transparent integration of OGG with Oracle Data Pump as explained in the Document ID 1276058.1. The CSN for each table is captured on an Oracle Data Pump export. The(…)

Oracle GoldenGate 19c: Cannot register Integrated EXTRACT due to ORA-44004

The global_name in an oracle database has a direct impact on the Golden Gate Extract process registration we need to do when we create an Integrated Extract. In my example below, I use Oracle GoldenGate MicroServices architecture but the same(…)