Oracle 1z0-1094-23 - Oracle Cloud Database 2023 Migration and Integration Professional

When using the RMAN DUPLICATE command for database migration, the auxiliary instance must be started in NOMOUNT mode. This mode allows the auxiliary instance to be prepared for duplication without opening the database, ensuring that the data files are accessible and can be replicated to create a duplicate database.

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.

Oracle Zero Downtime Migration (ZDM) leverages Oracle Data Guard technology for database migrations from on-premises to Oracle Cloud, ensuring minimal downtime by synchronizing the source and target databases until the cutover phase, making it an effective method for database migration projects.