Data Warehouse Interview Questions
Questions Answers Views Company eMail

Q. We are the loading the table on daily basis it is incremental loading. and A person rahul slary was 10000, so if i check before run my salalr is 10000. but toay there is update that my sal is 15k but that will come to know after the load. braod crtiteria is we donot want to show downstream teams partial updated data. need aproad as etl developer

479

Q. source having mutile depatment of data, dept1, dept2 ....dept10 today. we have mutilple depts in source, we need to generate dept1, dept2 and multile files in target side. today we have 10 dept which have 10 files, tommorow we have only 4 dept and 4 files, dayafter tommorow we have only 6 all the number of files in the targete file directory it's always dynamic. how can acheive it.

472

Q. Informatica workflow, it is running beyond two hours for last couple of runs, normally it completed less then 30 min., hardly 40 min, last couple of run crossing 2 hours and more in that workflow only one session. now it is aasign to you that how to idenitfy the performance issue of the sesion of production.

507

Q. In source area, it is use complex query we have using 5 to 10 table we has been join now all join clolumn having indexes but still we having performance issue. how to fix the performnce issue of the query.

565

Difference between task flow and linear task flow

541


Un-Answered Questions { Data Warehouse }

Differentiate between Symmetric Multiprocessing and Massive Parallel Processing?

614


Explain why denormalization is promoted in universe designing?

546


What are the types of studio?

678


explain about various caches available in data integrator? : Sas-di

573


How is MLOAD Client System restarted after execution?

593






What system options would you use to help debug a macro? : sas-macro

629


What is option by which we can run all the sessions in a batch simultaneously?

659


What is meant by query override?

631


What is purpose of having conditionality in metrics in microstrategy?

552


Reusable transformation and shortcut differences

1371


Hi, There is a session in my workflow which is running for a long time, atlast we found the cause is the missing index. My session is running via a stored procedure. Can I create an Index on the table which the stored procedure is using while my session is running? Please suggest. My Informatica version is PC 8.0.6 My Oracle APPS is 11.5.3. Thanks,

6745


If you use a symput in a data step, when and where can you use the macro variable? : sas-macro

603


How can you first report in Business Objects by using broadcast agent?

2593


what is PhaseIII, ODS, TLG, Macro and Proc in SAS

3893


What a local lookup is?

603