Data Warehouse Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Teradata (490)
Business Objects (875)
Cognos (1143)
Informatica (2428)

SAS (1049)
Micro Strategy (282)
ETL (315)
OBIEE (92)

Data Warehouse Interview Questions

Questions Answers Views Company eMail

scenario

1 3472

Any one tell me some 5 session failure in real time?And why problem occur how to solve the issues?

Amdocs,

1 3905

we have 20 records in source system, when we run for the 1st time, it should load only 10 records into the target, when you run for the second time it should load another 10 record which are not loaded. How do we do that? Can we write a SQL query in source qualifier to do it. This q' is asked in one f the interviews. Please let me know if anyone knows. Thanks

TCS,

3 7072

How can we select pr retrieve the particular row in dataset by using orchadmin command?

IBM,

1 3579

I have 3 jobs A,B and C , which are dependent each other. I want to run A & C jobs daily and B job run only on sunday. how can we do it?

CGI,

1 4820

Hi Cognos Folks, I have all cognos certification dumps. In fact i am certified in most of the dumps recently. I have cognos material, pdfs, user guides, documents along with dumps. If any one required cognos dumps, please drop me mail at cognos.biuser@gmail.com Thanks, Cognos bi user

IBM,

13 16126

hi frnds any body have cognos projects plz send me two(or)three projects to my mail adress ramureddy.reddy4@gmail.com.

1551

i have a session which creates a file every time when i runs the session, but it replaces the first file with second file,i want to append the second file follwed by first file when i runs the session,how to achieve this?

Thomson Reuters,

1 4636

in my source i have 100 records, and 3 targets, i want to load 1st record into 1st target,2nd record into 2nd target,3rd record into 3rd target again 4th target into 1st target and vice versa,how to achieve this?

Thomson Reuters,

3 12015

can we import source table without using source qualifier? if yes then how? if no then why?

Thomson Reuters,

2 9473

in my source table i want to delete first and last records and load in between records into target? how can it possible?

HCL, Thomson Reuters,

3 8356

i have 1000 records in my dource table, the same i have in target ,but a new column added in target as "batchno", and this column adds no 10 for 1st 100 records and 20 for next 100 records and 30 next 100 records and vice versa. how to acheive this?

Thomson Reuters,

6 10061

in my lookup table i want to catch the recently updated records from the source to target,how to achieve this and what is last commit interval point for this?

Thomson Reuters,

2 5990

Can any one help me about cubes in cognos.How to create the cubes and how to migrate from development to QA and also what is the procedure to refresh teh cubes.

2 4370

How many number of reject links merge stage can have?

TCS,

7 12510

Un-Answered Questions { Data Warehouse }

How to Extract data from multiple legacy systems?

576

What is the difference between dependent data warehouse and independent data warehouse?

606

How to create context?

598

What are the different options available for update strategy?

580

What is initial load and what is full load?

516

Given input file with single column having 1 2 2 4 3 .. Required output 1 2 2 4 4 4 4 3 3 3.. How?

534

Explain different types of partitioning?

618

what is the role of transformer?

Describe data concatenation?

573

how many reports do u create in ur project?i don't have real time exp..tell me based on ur exp..for interview pt of view,don't say it depends on ur project and u? thanks in advance..

1696

Explain attribute role?

609

How are numeric and character missing values represented internally?

1136

How to convert a numeric variable to a character variable?

631

What is decode in static cache?

595

Is possible to create skid in dim,fact tables?

2190

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