Data Warehouse Interview Questions
Questions Answers Views Company eMail

can anybody tell me when do use 'running total'...give an example for the usage of running total

EDS,

2 8597

create a job that splits the data in the Jobs.txt file into four output files. You will direct the data to the different output files using constraints. • Job name: JobLevels • Source file: Jobs.txt • Target file 1: LowLevelJobs.txt − min_lvl between 0 and 25 inclusive. − Same column types and headings as Jobs.txt. − Include column names in the first line of the output file. − Job description column should be preceded by the string “Job Title:” and embedded within square brackets. For example, if the job description is “Designer”, the derived value is: “Job Title: [Designer]”. • Target file 2: MidLevelJobs.txt − min_lvl between 26 and 100 inclusive. − Same format and derivations as Target file 1. • Target file 3: HighLevelJobs.txt − min_lvl between 101 and 500 inclusive. − Same format and derivations as Target file 1. • Rejects file: JobRejects.txt − min_lvl is out of range, i.e., below 0 or above 500. − This file has only two columns: job_id and reject_desc. − reject_desc is a variable-length text field, maximum length 100. It should contain a string of the form: “Level out of range: ”, where is the value in the min_lvl field. My Question is how do you write the stage variable for reject rows.

HCL,

2190

where do we see the run time of the report ?

2 4970

I have a column contains a data like A,A+,A++,B,B++ how u going to sort ther data?

4 6715

How the date 04oct1994 is stored in SAS,not only give the answer explain in brief?

5 6743

can we create aliases for every table beforehand? if yes whar are the disadvantages?

AG Technologies,

5 9037

what are the disadvantages of alias?

Patni,

6 18123

WHAT IS ROW LEVEL SECURITY IN BO?

Wipro,

7 22253

What is security level in BO ?

Accenture,

3 9042

Can we create a web page where the report directory and the output can be viewed directly across cognos connection?

TCS,

2 5910

Which service handles requests for cognos connection,query studio and event studio.

TCS,

2 10074

plz giv ans . user1 developed some repot ,user2 modify the same report and user 3 also some updates in that same report ? how to indentify that report will be modified r not ?

2 4710

how to do Ad-hoc reporting ?

IBM,

6 10996

i Have created the universe in which i have one table and different derived tables from the same table i am supposed to create report from the same universe which should dispalay the duplicates rows, but all the time i run the report i am not getting the duplicate rows i have checkd the duplicate report option too in report.. is there problem with universe or report,.. can any body help?

2 5728

Is cognos models are version compatible?

2 4079


Un-Answered Questions { Data Warehouse }

Can we test the report other than manual testing?

1659


Re: hi,dis is Hari.I'm searhing on cognos.1 want realtime scenarios with solutions.persons having hands on experience in real time plz help me out. my mail-id is shankerhari17@yahoo.com, hope u will respond as soon as possible. thank u in advance

1662


Suppose on 1st Nov 2010 you had created a mapping which includes huge aggregator calculations and it is under process for next two days. You will notice that even on 3rd day also its still calculating. So without changing a logic or changing a mapping How will you troubleshot or to run that mapping? Explain the steps

1622


What are situations where snowflake schema is better than star schema when the opposite is true?

562


Describe the between keyword in teradata?

612






What is a difference between complete, stop and abort?

639


What is the difference between data warehouse and operational systems?

594


How we can monitor the performance of Redshift data warehouse cluster.

5


What are the differences between star and snowflake schema?

492


How to perform incremental load in datastage?

664


How can bottlenecks be identified?

576


What are various etl tools in the market?

523


what is diff b/t sorter t/r and agg have the option sorter property...

1742


What do you mean by drill through report?

577


Explain the differences between normalizer and normalizer transformation?

519