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what is data modeling?
Difference between flat files and relational sources?
how to load the data to fact table?
How to recover a workflow? What are the different approaches?( In prod i.e no access to modify)
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?
Explain etl mapping sheets?
What are the different etl testing categories as per their function?
What is the difference between round-robin partitioning and hash partitioning?
how would u estimate the size of Lookup transform data and index cache?
where we cannot use sorter Transformation. if we use then we will not get correct data?
where is the cache (lookup, index) created and how can you see it.
What is etl process. How many steps etl contains explain with example?
what are the concerns of OLTP and DSS systems?
what is the difference between cardinality and Nullability?
what is granularity in Data ware House?
