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what is granularity in Data ware House?
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How to increase performance without changing anything in mapping.( In prod)
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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?
how to join two tables without using joiner transformation .advantages of joiner over lookup and vice versa.
how to join two tables without using joiner transformation .advantages of joiner over lookup and vice versa.
5. How many repositories can we create in Informatica? 6. What is surrogate key? 7. What is difference between Mapplet and reusable transformation? 8. What is aggregate awareness? 9. Explain reference cursor? 10. What are parallel querys and query hints? 11. DWH architecture? 12. What are cursors? 13. Advantages of de normalized data? 14. What is operational data source (ODS)? 15. What is meta data and system catalog? 16. What is factless fact schema? 17. What is confirmed dimension? 18. What is the capacity of power cube? 19. Difference between PowerPlay transformer and power play reports? 20. What is IQD file? 21. What is Cognos script editor? 22. What is difference macros and prompts? 23. What is power play plug in? 24. Which kind of index is preferred in DWH? 25. What is hash partition? 26. What is DTM session? 27. How can you define a transformation? What are different types of transformations in Informatica? 28. What is mapplet? 29. What is query panel? 30. What is a look up function? What is default transformation for the look up function? 31. What is difference between a connected look up and unconnected look up? 32. What is staging area? 33. What is data merging, data cleansing and sampling? 34. What is up date strategy and what are th options for update strategy? 35. OLAP architecture? 36. What is subject area? 37. Why do we use DSS database for 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?
how do u estimate the number of partitions that a mapping really requires? Is it dependent on the machine configuration?
What are the three tiers in etl?
Mention few test cases and explain them?
How to know informatica conslole password??
explain about your project architecture in ssis..could u please send to my mail..vinod.kjvk@gmail.com
can u anyone plz share some etl testing interview question . and share the sql queries and unix . plz help me to clear in the etl testing interview by sharing ur knowledge
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