Which type of testing focuses on verifying data consistency during the "Load" phase of ETL?
- Data completeness testing
- Data profiling testing
- Data reconciliation testing
- Data transformation testing
Data reconciliation testing focuses on verifying data consistency during the "Load" phase of ETL (Extract, Transform, Load) process. It involves comparing the data loaded into the target system with the source data to ensure that all the expected data is accurately transferred without any loss, corruption, or transformation errors. This type of testing helps detect discrepancies or mismatches between the source and target data, ensuring data integrity and reliability in the ETL process.
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