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without using ETL tool can u prepare a Data warehousing and
maintaining?
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Answer Posted / kiran
Hai..,No Possible.
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how does the server recongnise the source and target databases.Elaborate on this
SCD2 will work on only dimension tables as well as fact Table?
when will use SQL override in a lookup transformation?
explain the methodology of Data Warehousing?(Polaries)
HI, Anybody is having informatica Dumps,if it there Can u send to my mail id :sathesh.cool@gmail.com
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 various etl tools in the market?
In Which Transformation We Can Use Having Clause In Informatica?
Knowledge on what are the improtant characteristice that we need ot consider while developing an ETL Code
What are cubes and olap cubes?
Identifying the bottlenecks in various components of Informatica and resolving them.
What is tracing level? How many types of transformations supported by sorted input?
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?
Difference between flat files and relational sources?
1)Power center server and client on the same machine 2)power center server and client on the different machines What is the basic difference in these two setups and which is recommended ?
