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Answer Posted / ashish
Use Desc Table_name
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What are cubes and olap cubes?
what is an ETL or ETT? And what are the different types?
how can i text accracy of ETL migration? i am very new to data warehousing. we are writing ETL scripts using SCRIPELLA tool. how can i test the correctness of data. and we are generating reports using pentaho . is there any easy way to test the pentaho. how can test these ETL scripts written in scriptella? thanks in advance
Can anyone explain me a scenario from banking and finance...more precisely a mapping
Explain the key challenges that you face while performing etl testing.
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 dynamic insert?
diff b/w dwh & data mart diff b/w star schema & snow flake schema diff b/w fact table & dimension table what are the contents in requirement specification what are the docs needed for testing draw ur proj architecture
tell me few points when u become TL
what is the use of structures?how many nodes can u create in a structure?
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 do you understand by the term ‘transformation’?
What is partitioning? Explain different types of partitioning?
what is the difference between cardinality and Nullability?
Explain what are the various etl tools in the market?
