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What is Understanding ETL Processes and Testing about?

ETL stands for Extract-Transform-Load and describes the process of extracting data from source systems, transforming it to match the data warehouse schema, and loading it into the data warehouse. ETL testing is required to verify correct data transformation and loading according to business requirements, detect and address data loss or errors, and ensure expected performance. A data warehouse is a subject-oriented, integrated collection of historical data used to support management decision making through q

Author

shamjishrihari1498

Language

EN