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Explain do we need an etl tool?
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what are the concerns of OLTP and DSS systems?
how to answer the question "explain project architecture" in informatica pls any one who has the answer pls send the answer to this mail id "karumanchisrinu@gmail.com
please tell me any easy ways of testing the Data warehouse project. In my project we are not using any tools for ETL. we are writing scripts in SCRIPTELLA. And we using Pentaho tool for Reporting How can i test all these. please tell me ASAP. thanks in adavance
Difference between flat files and relational sources?
can be used COM component in Informatica ?
what are Lookup caches options? Including persistent caches.
how do u set the size of block buffer?
Explain about power designer data modeling software?
Explain the difference between etl tool and olap tools?
what are the reporting tools and difference between them?
what is HISTOGRAM? how to generate statistics?
What is tracing level?
Teradata 
