Overview

Oracle Golden Gate servers are replication tool for Oracle and can be used to provide DR and HA as follows:

• Unidirectional Replication
• Bidirectional
• One to Many
• Round replication

As such there are a lot of methods and ways to monitor

1. General Troubleshooting
2. Extract Redo log file via Log Miner
3. Extract binary (long raw) column

1. OGG01168 - Encountered an update for target table with no unique key