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ETL Interview Questions
Questions Answers Views Company eMail

Hi my name is kuldeep singh, i have finished my B.E in computer science and engg in 2008. I have worked with accenture for 17 months and because of family problem i left the job in dec 2009.. i was in data ware housing capability. right now i am working in a BPO as technicla support executive,, i want to move to IT again, please suggest me what shuld i do? its been 1 year gap and i am not able to get into IT...please suggest me ...should i go for informatica certification will that help me to get inot IT. please give ur suggestion..my E mail is is singh.kuldeep2004@yahoo.in

2160

What is Data Vault???

2695

What is factless fact schema?

3 7096

Hi, I've a mapping with flat file source The target update override property for the target table is using update stmt. There is no update strategy between source and target. Also The session has the target properties as Insert , Update as update options checked. Does this mean that recs will be inserted only and the update override will not be applied at all. Thanks

1728

where we cannot use sorter Transformation. if we use then we will not get correct data?

2150

we hava a flat file having more than 1000 records and two targets. i have to write first half of the rows into first targets and next half of rows into second target. how can i do in informetica??

1 5380

we hava more than 1000 records. i have to select first 5 record, last 5 record and 5 records from middle of the source. how can i do in oracle as well as in informetica??

4 8521

I have a Flat file with more no. of Records also including duplicate values. But i need distinct values to one target and remaining records to another target in Informatica way

2 5757

WHY CANT WE SEE THE DATA IN DATASET

IBM,

1 5767

can u please tell me about ........ how can explain my project before interviewer my projects are insurence domain & sales domain?

2123

what are the types in error loging?

Cap Gemini,

2108

IN Informatica, I have 10 records in my source system. I need to load 2 records to target for each run. how to perform.please let me know. I know by using Mapping variable we can perform but how to load please any one explain.

TCS,

3 13478

how to answer the question "explain project architecture" in informatica pls any one who has the answer pls send the answer to this mail id "karumanchisrinu@gmail.com

TCS,

2 17834

flat filevalidation in informatica

Hewitt,

2101

how to connect to a flatfile through ftp in informatica

TCS,

1 14207


Post New ETL Questions

Un-Answered Questions { ETL }

What is a lookup table in etl?

1123


Two default user groups created in the repository are____and_____.

1990


What are the modules in Power Mart?

909


what is the difference between cardinality and Nullability?

2909


What is etl process?

883


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?

2676


What is partitioning? Explain about round-robin, hash partitioning.

910


Explain different types of partitioning?

980


Explain the difference between etl tool and olap tools?

864


What is cube grouping?

1009


When do we analyze the tables? How do we do it?

912


can cubes contain measures ?

1991


how do u set partition points in the mapping?

2195


Informatica server and client are in different machines. You run the session from the server manager by specifying the source and target databases. It displays error . You are confident that everything is correct. Then why it is displaying the error?

3726


Explain about the data integration suite features?

889