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Can we create Hierarchies in generic datasources?
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What is meant by incremental load?
how do u estimate the number of partitions that a mapping really requires? Is it dependent on the machine configuration?
Do we need an etl tool?
what is the difference between date cache and lindex cache?
Define Dynamic push down optmization?
what make u disappointmnets in u r career
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 is the difference between cardinality and Nullability?
Explain the difference between etl tool and olap tools?
what are the reports created in mm and sd side using sap bw in a project? name some of them and explain the requirement?
Assume u have a 24CPU machine with 24GB RAM, suggest how u would like to configure Informatica ,like number of concurrent sessions, RAM requirements etc,max partitions that u would permit per mapping.
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?
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