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ETL Testing involves comparing of large volumes of data typically millions of records. The data that needs to be tested is in heterogeneous data sources (eg. databases, flat files). Data is often transformed which might require complex SQL queries for comparing the data.Is selenium useful for ETL testing?
Selenium is not useful particularly for ETL testing. Selenium is an automation tool. While ETL testing is mainly related to database testing. But both has it’s own significance and it’s practical applications are also different. Selenium is just a browser automation tool.