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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
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what is the use of structures?how many nodes can u create in a structure?
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 do u identify the changed records in operational data?
what do u do when DB time takes more?in sap bi
Is apache nifi an etl tool?
two sources S1,S2 containing measures M1,M2,M3, 4 dimensions D1,D2,D3,D4, 1 Fact F1 containing measures M1,M2,M3 and surrogate keys K1,K2,K3,K4 (a) write a sql statement to populate Fact table F1 (b) Design a mapping in Informatica for loading of fact table F1.
how do u implement unconn.stored proc. in a mapping?
how would u estimate the size of Aggregator transform data and index cache?
When do we analyze the tables?
Explain and compare etl & manual development?
what happens if the info.server doesn't find the session parameter in the parameter file?
What are the key benefits of ETL Testing?
Teradata 
