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ETL Interview Questions
Questions Answers Views Company eMail

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

2488

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

2 7992

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?

2720

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 8910

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 17003

How to know informatica conslole password??

2120

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 4498

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

2042

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?

2245

what are the production issues in datastage?

10423

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

Maersk,

2087

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

Maersk,

2183

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,

2128

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

Accenture,

2631

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 10885


Post New ETL Questions

Un-Answered Questions { ETL }

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

2087


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

1786


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

2003


what is data modeling?

2322


Define Dynamic push down optmization?

2309


What is initial load and what is full load?

991


Difference between flat files and relational sources?

2316


What is a mapping, session, worklet, workflow, mapplet?

996


What are the various tools used in etl?

1050


can be used COM component in Informatica ?

2065


When do we analyze the tables?

978


When do we use dynamic cache and static cache in connected and unconnected lookup transformations? Difference between stop and abort

985


Can there be sub steps of etl steps?

1031


What are your responsibilities as an etl tester?

1166


what is a worklet?

999