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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 6789

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

Amdocs,

3 13686

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

Amdocs,

2 6835

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

TCS,

3 8806

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 6855

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 11178

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 7591

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 8780

how to sort two columns in single job in datastage.

TCS,

1 11085

how to sort two columns in single job in datastage.

TCS,

2907

how to sort two columns in single job in datastage.

TCS,

1 7941

Which warehouse using in your datawarehouse

IBM,

2191

what is conditional processing?

Accenture,

4 9266

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 6724

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 17032


Un-Answered Questions { Data Warehouse }

Write types of folders present in cognos?

1080


Give one reason when you need to consider multiple data processing?

1186


Explain the data types present in bo n wht happens if we implement view in the designer n report?

982


What is the difference between source qualifier transformations source filter to filter transformation?

1060


What is cube grouping?

1089


What is basic teradata query language?

1118


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

5


What is partitioning? What are the types of partitioning?

1172


What is powercenter on grid?

1183


What is the difference between constraind base load ordering and target load plan?

1123


If Fast Load Script fails and only the error tables are made available to you, then how will you restart?

1156


Syntax for case when statement?

1069


What is informatica etl tool?

1003


Explain what is ods (operation data source)?

995


how to use self join using datastage ? can u tell me using stage how can we implemnet the self join

5126