In ETL testing, how is data reconciliation used to ensure data accuracy and consistency?
- It involves comparing source and target data counts only
- It is not used in ETL testing
- It reconciles data at each ETL stage to identify discrepancies
- It validates data using statistical methods
Data reconciliation in ETL testing involves comparing data at each stage of the ETL process to identify discrepancies. This ensures data accuracy and consistency throughout the transformation and loading phases.
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