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what are the concerns of OLTP and DSS systems?
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what is the difference between OLTP database and data warehousing database?
How many types of transformations supported by sorted input?
how do u decide whether u need to do aggregations at database level or at Informatica level?
what is granularity in Data ware House?
When do we use dynamic cache and static cache in connected and unconnected lookup transformations? Difference between stop and abort
Difference between flat files and relational sources?
what happens if the info.server doesn't find the session parameter in the parameter file?
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 the reports created in mm and sd side using sap bw in a project? name some of them and explain the requirement?
Which transformation we use to convert 'NA' to 'Not Available'
What is the difference between round-robin partitioning and hash partitioning?
what is data modeling?
Teradata 
