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What is virtual Data Warehousing?
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Difference between flat files and relational sources?
Explain about enterprise scalability and roi of data integration suite?
what do u do when DB time takes more?in sap bi
what is the meant by Normalization and de-normalization?
what is session partitioning?
Compare ETL & Manual development?
What is tracing level? How many types of transformations supported by sorted input?
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 data modeling and data mining?
Hi, I completed MCA in 2006.After studied Informatica,SQL server and basics of reporting tool in one of the training center in chennai.I got subject knowledge only.But I didn't go any job because I scared to face real time.Anyone please advice how can I enter again into this and anyone provide real time exposure with project.
How we can see table structure?
Teradata 
