What is a materialized view log?

0 Answers  

---

What are the ETL Testing Operations?

0 Answers  

---

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?

0 Answers  

---

SCD2 will work on only dimension tables as well as fact Table?

0 Answers   Infosys,

---

What is abap? What are idocs?

0 Answers  

---

what is the meant by Normalization and de-normalization?

2 Answers  

---

how to load the data to fact table?

0 Answers  

---

What is the main difference between peek stage and copy stage

2 Answers  

---

A mapping contains source table S_Time(stat_year,end_year) target table TIM_DIM(date,day,month,year,quarter) stored procedure transformation: A procedure has two parameters I_end_year and output parameter as O_date ,day , month, year, quarter, If this session is running, how many rows will be available in the target and why?

0 Answers  

---

How to delete data which is not in source table?

0 Answers   IBM, Saama Tech, Wipro,

---

What is the difference between Data Warehousing and Data Mining?

0 Answers  

---

How can you use an Oracle sequences in Informatica ? You have an Informatica sequence generator transformation also. which one is better to use?

0 Answers  

---