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Answer Posted / gyana
READ,DTM,WRITER ARE THE COMPONENT OF INFORMATICA SERVER
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how do u set partition points in the mapping?
How to delete data which is not in source table?
when will use SQL override in a lookup transformation?
What are dimensions?
what is granularity in Data ware House?
what are the production issues in datastage?
Is hadoop a etl tool?
how many steps are there in etl process?
What do you understand by active and passive transformations?
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 are the facilities provided by data warehouse to analytical users?
what are the cubes developed in a sap bw project and what is the requirement for developing it?
Explain the use lookup tables and Aggregate tables?
how do u estimate the depth of the session scheduling queue? Where do u set the number of maximum concurrent sessions that Informatica can run at a given time?
What are various etl tools in the market?
