One Friday evening, a massive batch update hit the New York system. In the past, the reporting server would have been hours behind. Elena opened the GoldenGate Software Command Interface (GGSCI) and typed: stats extract ext_ny, total stats replicat rep_ldn, total
Elena’s mission was to offload the reporting to a secondary database in London without stopping the live New York system. She knew that traditional methods like Data Guard wouldn’t work because the London site needed to be for local updates. Step 1: The Foundation (Extract) Pro Oracle GoldenGate for the DBA
Elena started by configuring the process. Unlike basic replication, GoldenGate doesn’t query the live tables—it "mines" the database redo logs. Elena set up a Capture process that sat quietly in the background, capturing only the committed changes (DML and DDL). She carefully tuned the TRANLOGOPTIONS to ensure the Extract didn't impact the production CPU. Step 2: The Data Highway (Trails and Pump) One Friday evening, a massive batch update hit