ETL TESTING TUTORIAL                

ETL TESTING TUTORIAL

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ETL testing is done to ensure that the data has been loaded from a source to the destination after business transformation is accurate. It also involves the verification of data at various middle stages that are being used between source and destination. ETL stands for Extract-Transform-Load. Data is extracted from an OLTP database, transformed to match the data warehouse schema and loaded into the data warehouse database. ETL can transform dissimilar data sets into an unified structure.


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