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ETL Interview Questions
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please tell me any easy ways of testing the Data warehouse project. In my project we are not using any tools for ETL. we are writing scripts in SCRIPTELLA. And we using Pentaho tool for Reporting How can i test all these. please tell me ASAP. thanks in adavance

1622

what types of repositories we can create in informatica? in real time in which type of repository we will work on?

2 5961

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?

1945

we have 1 source table containing 100 records. now we have to transfer first set of 1-10 (i.e1-10) records to one target table and another set of 1-10(11-20) records to other target table and continue like that till 100th record

3 6619

CAN ANY ONE SEND ME THE CODE FOR THE BELOW 1).REMOVE '_' FROM TELE PHONE "323-237-2323" AND SHOULD DISPLAY OUT PUT AS "323237232" 2). NEED TO ONLY "COMPANY.COM" FROM EMAIL FILED "TEST@COMPANY.COM"

11 10878

How to know informatica conslole password??

1187

Can anyone please send me the latest informatica dumps (power center 8.1.1) for all the three exams? My mail id is yokilamai@gmail.com

1 3032

HI, Anybody is having informatica Dumps,if it there Can u send to my mail id :sathesh.cool@gmail.com

1289

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?

1430

what are the production issues in datastage?

8832

what are the cubes developed in a sap bw project and what is the requirement for developing it?

Maersk,

1361

what are the reports developed in sap bw project and what is the requirement for developing it?

Maersk,

1343

what are the reports created in mm and sd side using sap bw in a project? name some of them and explain the requirement?

Accenture,

1312

what are the data sources extracted from logistics cockpit in sap bw project and what is the requirement for it ?

Accenture,

1768

in sap bw project at what scenario generic extraction is used and why explain and also tell why you used calendar day option explain?

Accenture,

2 8591


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Un-Answered Questions { ETL }

what are the production issues in datastage?

8832


State the differences between shortcut and reusable transformation

185


Explain about etl data integration software?

137


what make u disappointmnets in u r career

1411


What are the differences between sql override and update override?

180






what are the data sources extracted from logistics cockpit in sap bw project and what is the requirement for it ?

1768


What is fact? What are the types of facts?

186


what is session partitioning?

1186


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

157


What is data modeling and data mining?

178


Difference between flat files and relational sources?

1349


where are the log files generally stored.Can you change the path of the file.what can the path be?

1470


what is the use of server?

1180


What are cubes and olap cubes?

201


Knowledge on what are the improtant characteristice that we need ot consider while developing an ETL Code

1206