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Data Warehouse Interview Questions
Questions Answers Views Company eMail

My source is like bellow F.NAME M.NAME L.NAME A B C D E F G H I and out put should like S.NO F.NAME M.NAME L.NAME 1 A B C 2 D E F 3 G H I 4 UNNOWN UNNOWN UNNOWN How can we acheive? please explane me indetail

Amdocs,

2 6908

I have a scenario with router transformation. but i dont want to capture records from default group. how can we achieve this.

Amdocs,

3 13827

while creating the scd mappings. we will mention flag value. what exactly the use of defining the FLAG VALUE. Please explaine indetaile

Amdocs,

2 6945

What is CHECK-IN CHECK-OUT. Please explane me?

TCS,

3 8928

Hi 2 every one. i dont have real time experience, and please suggest me for following questions. a) we get the source data from what type of source systems? b) In banking domain project what are the FACT & DIMENTION tables please list out them? c) please write some colomn names in a table? Please reply for aboue questions?..... Thanks in advance.

Amdocs,

1 6972

Anyone has Datastage certification free dumps for 000-418 , 000-421 codes, mail me @ manik.dwh@gmail.com 000-418 : InfoSphere DataStage v8.0 000-421 : InfoSphere DataStage v8.5

IBM,

2 11292

Hi All, I have a table with 3 fields like id,mark1,mark2 and I would like to update a mark3 field that would calculate the max for each record (so the max value of the 2 fields) in Teradata ID Mark1 Mark2 Mark3 1 10 20 2 20 30 3 40 10 4 50 50 I Have to write a update statement Mark3 with max value of mark1,mark2 fields…like bellow ID Mark1 Mark2 Mark3 1 10 20 20 2 20 30 30 3 40 10 40 4 50 50 50 Please any one help me ....Thq

Wipro,

3 7728

I Have Name field in a Table Name ------------- abcde;fgh;ijk; abc;def;jklm;no I want to write a sql to display name field data with out ';'.so i want to replace ; with '' how will write in Teradata

Wipro,

3 8953

how to sort two columns in single job in datastage.

TCS,

1 11178

how to sort two columns in single job in datastage.

TCS,

2960

how to sort two columns in single job in datastage.

TCS,

1 8023

Which warehouse using in your datawarehouse

IBM,

2244

what is conditional processing?

Accenture,

4 9411

if suppose i have 3 columns namely 1,2,3 in table a and 1,2,3 in table b Now in table a 1,2 and table b 1,2 columns are having same data.now based on this two columns either data should get inserted or updated. How do i write a sql query to check whether the data is populated correctly or not

Cap Gemini,

2 6806

Hi frnds, my scenario is like i'm having a record 1234"1323£3434%343434^23232!1212$23232 in the above record all the special characters must be removed.how can we do it in datastage 8.0.1.can any one please ans this? thanx in advance

IBM,

2 17172


Un-Answered Questions { Data Warehouse }

Can we create a Integration service without a Repository service and vice versa?

1260


Explain which versions are used in the bo dashboard work?

1130


What is the difference between writing a joiner query in ANSI style and THETA style?

2439


What is the use of having index on table?

1044


How does a rank transform differ from aggregator transform functions max and min?

1263


explain about unit testing? in real time?

2265


Explain ddl (data definition language)?

1052


Why do we need informatica?

1054


Give a justifiable reason why Multi-load supports NUSI instead of USI.

1219


What is the difference between a repository server and a powerhouse?

1581


What are the possible data marts in retail sales?

1066


Can you explain the performance and scalability of co> operating system?

1179


how lookup transformation is made active in new versions... When to use connected and when to use unconnected lookup and why? which is good for session performance. How to make lookup persistent and how to remove stale data from that lookup. how commit works - when we stop or abort data. Explain in both cases. What is factless fact table and have you ever used it in real time scenarios.

1734


Connecting to iserver volume using idapi classes(java classes) and after connecting to iserver I want to execute the rox on iserver and also want know the status whether that job is succesfully run or not?

1083


Hi All, Is there any way to check whether a value is selected in a Multi-select tree prompt? I have a tree prompt and want to get to know whetehr which values user has selected,i want to so that values on the top of the report. I Have used that paramDisplayValue('paramername'),But it will display only last selected value. For Example i have tree prompt with one level Region- >country->states If user select region Asia it will dislay the all the Countries in that region and then if user select India it will display the states related to india only Suppose Hierachy look like this: Asia->India->Andhra Pradesh. I want to show this hierachy on the top of the report How it is possible? Can you please help me?

2155