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what are the data modeling tools you have used?(polaris)
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What are the etl testing operations includes?
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what is the difference between OLTP database and data warehousing database?
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?
Is hadoop a etl tool?
what is the difference between shortcut of an object and copy of an object? compare them?
what is dynamic insert?
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we hava more than 1000 records. i have to select first 5 record, last 5 record and 5 records from middle of the source. how can i do in oracle as well as in informetica??
how do u automate Extraction process?
Explain about round-robi?
how would u estimate the size of Aggregator transform data and index cache?
Teradata 
