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

insallation procedure for power center 8.1.1 especialy domain_config hw to use parameter files

1 4226

Please Tell me..,I need some Complex Jobs in datastage as per in interview?how to tell and how to explain?please send as well as posiible please

Systime,

1 18143

Hai..,in datastage how to explain project in interview?please explain any domain please.

Wipro,

1 13682

what is the difference between sas and other datawarehousing languages?what are the advantages of sas over them?

Accenture, Infosys,

2 9311

How can we convert crystal dictionary dc5 file to another datasource format like mdb or xml schema ?

1 5436

what is crosstab reporting,slice and dise and drill mode??

3 12514

when we go for unconnected lookup transformation? and why?

Accenture,

5 14550

why we use source qualifier transformation?

Accenture,

16 46577

HOW WILL YOU IMPLEMENT SURROGATE KEY IN SCD BY USING SURR_KEY GENERATOR,THE VALUE OF S_KEY SHOULD NOT REPEAT EVEN IF THE JOB IS COMPILED REPEATEDELY?

L&T,

4 18085

WHAT ARE THE STAGES U WILL USE IN IMPLEMENTING SCD2/DATE FIELD

L&T,

8 22619

WHAT ARE PERFORMANACE SETTINGS YOU HAVE IMPLEMENTES IN YOUR PROJECT?

GE,

2 9229

1.How can we driil through from a page report having query1 to list report having Query2 in master detail relationship n Drill through? 2.In database i have 50 records but when it is displayed on the report i'm getting 100 record with duplictes.How can we solve this to eliminate duplicates? 3.Exact Diff B/W Filter n Condition? 4.Render Variable? 5.I have leftouter join when right table does not have any matched records with left table what will be the output of the report whether it will be dispalying Null or blank in that particular row? 6.How to test the reports i.e Unit Testing? 7.How canwe drill through when there is no common column between the parent n child report? 8.How can we do performance tuning? I kindly request all the experts to give reply with correct answers and if possible send me some examples regarding that at srini.madhala@gmail.com

IBM,

1 6422

What are the challenges of Dataware housing in the future?

HP,

2 8204

Which gives the more performance when compare to fixed width and delimited file ? and why?

HP,

3 13777

Explain about derived tables?

Cap Gemini,

2 8845

Un-Answered Questions { Data Warehouse }

What are the statements in proc sql?

1107

Describe expression transformation?

1135

What is a lookup table in etl?

1192

What is the difference between global temporary tables and volatile temporary tables?

1187

What is cfapplication tag?

976

How to do unit testing in informatica?

1180

What do you understand by ‘ibm predictive maintenance and quality’?

994

What is difference between model & package?

1038

What is surrogate key? Explain with examples.

1164

What is the session task and command task?

1065

What is sort component in abinitio?

1236

Have you used Unstructured data?

1326

While creating table my dba has fallback or no fallback in his ddl. What is that?

1189

What is the syntax for m_dump in abinitio?

1628

What are the different types of sas functions?

1287

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