Oracle Extract transform load (ETL) Question:

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What is ODS (operation data source)?

Oracle ETL Interview Question
Oracle ETL Interview Question

Answer:

ODS - Operational Data Store.

ODS Comes between staging area & Data Warehouse. The data is ODS will be at the low level of granularity.

Once data was poopulated in ODS aggregated data will be loaded into into EDW through ODS.

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