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What is data modeling and data mining?
What are three tier systems in etl?
can u anyone plz share some etl testing interview question . and share the sql queries and unix . plz help me to clear in the etl testing interview by sharing ur knowledge
What is virtual Data Warehousing?
what are the facilities provided by data warehouse to analytical users?
1.Identify and discuss the problems which are occurred during data quality verification for the single-source and multi-source problems. 2.Testing has very important role in DWH. In ETL testing phase, how can we perform the integration testing and regression testing? 3.What are the perquisites of system testing and regression testing in ETL phase?
what is a worklet?
Define slowly changing dimensions (SCD)?
Can there be sub steps of etl steps?
Explain what are the various etl tools in the market?
Is apache nifi an etl tool?
What are the types of data warehouse applications and what is the difference between data mining and data warehousing?
What are the etl testing operations includes?
how do u set partition points in the mapping?
what happens if the info.server doesn't find the session parameter in the parameter file?
