Oracle GoldenGate 11g Essentials

Describes how the extract reads transaction logs and writes to trails, how pump moves data to the target host, and how the replica populates the target database from trails.

Explore Oracle GoldenGate management tools, including ReadyData for data verification, the management pack with director and monitor, and adapters for Siebel, flat files, and JMS to enable bi-directional data synchronization.

The initial load in Oracle GoldenGate 11g is a one-time run that populates the target. Then GoldenGate continues with extract and replicate, offering direct load or file-based loading options.

Learn to create obey scripts in Oracle GoldenGate that group commands for sequential, repeated execution, and manage nested scripts up to 16 levels for flexible automation.

Configure and start the Golden Gate environment by creating the DBI user on source and target, enabling supplemental logging, and defining mappings with defgen for initial synchronization.

Understand change capture in Oracle GoldenGate 11g, reading the source log to generate trail data with low impact, and using pumps to deliver to multiple destinations with reliable checkpointing.

Create a power meter file to define extract options, review BPT syntactical requirements, and start the extract via Golden Gate interface or CLI, then apply the same to the pump.

Execute the initial load as a one-time task to sync the source with the target, then enable ongoing extract and replication for changes.

Initiate change capture as a prerequisite for the initial load to prevent delays and prepare for handling collections and chapters on change capture, delivery, and applying captured changes.

Explore collisions during the initial load in Oracle GoldenGate 11g and compare downtime versus no downtime approaches, including how extract reads redo logs and handles ice conditions.

Learn to handle collisions in GoldenGate 11g during load and capture, including duplicate and delete events, using wildcard rules within 10 am to 1 pm window before switching to replication.

Explore trail files in Oracle GoldenGate 11g Essentials, distinguishing local and remote trails, and comparing Golden Gate format versus ASCII; learn when to use replica processing and external utilities.

Explore the Golden Gate format, focusing on checkpoints, three files, file order, and DML sequencing to preserve data and transaction integrity from source to target.

Explore space requirements for Oracle GoldenGate 11g, determine how much space to keep track of, and identify the conditions to decide space needs when multiple processes consume the same item.

Configure the trail file compatibility level in the extract to enable cross-version readability, allowing a live GoldenGate setup to feed replicas across multiple versions.

Use the reverse utility to undo erroneous source changes by reversing captured transactions in the trail, turning deletes into inserts, updates into their previous values, and applying reversal with replica.

Explore four types of parameters for GoldenGate, including global parameters stored in the globals file, and manager, extract, and apply parameter files, with reference to Unix and Windows guides.