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Data Warehouse Interview Questions
Questions Answers Views Company eMail

Can u load same data into multiple tables using multiload? How will be the loading process? Whether it will be serially or parallely?

IBM,

2 9637

How to handle nulls in Teradata??? How many columns can be there in a table??? How to find average sal with out using avg function????

Mphasis,

3 13480

In which scenarios we use Volatile tables and Global temporary Tables in Real time? Please give me one real time scenario???I know wat is its use??

CTS, Lexicon,

3 16769

waht is the advantage of infoset query

iGate,

2425

what is the diffrence between psa and idoc

iGate,

2323

How to import multiple xls files into sas. Out of those files, how to get different values from a single variable and how to find number of rows per value type? We can do this using group by for one xls file with proc sql. Was wondering how I can achieve this for multiple files at the same time. Any ideas?

1 3031

how may sources can be used in a mapping at a time?(limit)

IBM,

6 10005

what is the difference between look up and joiner(don't say joiner sopport only = where as look up support non-equijoin).

IBM, ITC Infotech,

3 10455

What is the default layout of a component ? Is it mandatory to set the layout of a component ?

IBM,

3 12906

What is the difference between a router and a filter transformation?

TCS,

1 5923

My source table look like ID Name Location Salary 1 ran NULL NULL 1 NULL DELHI NULL 1 NULL NULL 1000 I want my output to look like ID Name Location Salary 1 ran Delhi 1000 What should be my approach to design a informatica mapping. Assuming my source is flat file not a Relation table so i cant use SQL.

BirlaSoft,

2 6574

performance wise which one is better in joiner and lookup transformation

2 6725

Why Info School? BUILD YOUR CAREER WITH RIGHT GUIDANCE AND SUPPORT SAS Training in Data Management at InfoSchool Bangalore

1 3935

which transformation uses cache?

Keane India Ltd,

3 7480

suppose we have 1 to 10 records.In router transformation we had given two condition A>= 5 A<=5 then what will be the output?

emc2,

2 7161


Un-Answered Questions { Data Warehouse }

how to generate the test data in sas without input data? : Sas-administrator

1207


hi..i'm searching on cognos.i want to know some real time explanation..persons who have real time exp and who r searching in this field..can u send ur mail-id..my mail-id is dhaanuus@gmail.com..hope u will respond as soon as possible..

1964


1)what is the size of Fact table and dimension table? 2)how to find the size of Fact table and dimension table? 3)how to implement the surrogate key in transform stage? 4)write the configuration file path? 5)how many types of datasets explain? 6)diff b/w developed projects and migration projects? 7)how to delete the header and footer file of the sequencer file? 8)how can u call the parameters in DS in unix environment? 9) how much data ur getting daily ? 10)

2795


how many reports have u created ? explain a few.

2162


can anyone provide link to download cognos 7.2 version for download along wiht installation and configuration steps tx in advance

2306


Hi, If anyone has base SAS certification dumps, please share.

1940


Tell me about your experience in informatica? what is best mark you can give yourself? How to answer this question?

8288


does anyone "QlikView" BI tool. if you have any docs send me pls. yaparas84@gmail.com

6077


i'm searching on cognos..i want to know real time scenarios..persons having real time exp or undertaking trainings or who searching on cognos...can send me the details...for proper guidence..for project and interview preparation..pls help me out..my mail-id is ammu2india@gmail.com..hope u will respond as soon as possible..thanks..

2771


draw informatica architecture 8.6 ?

3949


Explain have you ever been in a real dilemma at work? What did you do to get out of it?

1044


What is a rollup component? Explain about it.

1245


Hi, Does anybody has lastest SAS certification(base, adv., clinical)dumps,if anybody has please email me at mailtorajani76@gmail.com. Thanks

2313


EXL informatica Questions

1462


How much data hold in one universe 336 can any one explain about core dimension, balanced dimension, and dirty dimension?

1200