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explain the methodology of Data Warehousing?(Polaries)
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What are the different Lookup methods used in Informatica?
list the transformation used for the following:Heterogeneous sources,Homogeneous sources,Find the 5 highest paid employees with in a dept,create a summery table,generate surrogate keys
What is cube grouping?
Informatica server and client are in different machines. You run the session from the server manager by specifying the source and target databases. It displays error . You are confident that everything is correct. Then why it is displaying the error?
Is hadoop a etl tool?
what is meant by drill through?(Mascot)
Explain about power designer data modeling software?
What is a lookup table in etl?
What is data modeling and data mining?
what are the concerns of OLTP and DSS systems?
what is the use of structures?how many nodes can u create in a structure?
Compare etl & elt?
Teradata 
