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To enable Change Data Capture (CDC) in Oracle Data Integrator (ODI) for a data store, you need to start the journaling process by adding the data store to CDC and then starting the journal. This process initializes CDC for the specified data store, allowing ODI to track and capture data changes. Configuring journalizing options and ensuring primary keys are defined are also important steps, but the critical actions are adding the data store to CDC and starting the journal.

Reverse-engineering a model in Oracle Data Integrator (ODI) from source tables in an on-premises Oracle Database retrieves metadata such as constraints (e.g., primary keys, foreign keys), column names, and data types. This information is crucial for creating accurate and functional data integration mappings in ODI.

ETL stands for Extract, Transform, and Load. This process involves extracting data from various sources, transforming it into a format suitable for analysis and reporting, and then loading it into a target data warehouse or database. ETL is a fundamental component of data integration and business intelligence processes, facilitating the consolidation and optimization of data for decision-making purposes.

In Oracle Database architecture, a Container Database (CDB) can contain one or more Pluggable Databases (PDBs). This multi-tenant architecture allows for the efficient management of multiple databases within a single container, optimizing resource usage and simplifying database administration.