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

what are all the deliverables of ETL informatica power center project? what are all updated or created by etl developer as his everyday activities?

2305

How to create the list file having millions of flat files while indirect loading in informatica? In indirect file loading, suppose we have less no.of flat files then we can enter files names manually in list file creation. If millions of files are there, how can we enter the flat file names in list file?

HP,

1975

In indirect file loading, suppose we have less no.of flat files then we can enter files names manually in list file creation. If millions of files are there, how can we enter the flat file names in list file?

HP,

1 3181

Some flat files are there, out of these having some duplicate. How do you eliminate duplicate files while loading into targets?

IBM,

1796

There are 10 flat files; out of 10 files 1 file is empty. How do you identify the empty file? How can you load all files into targets?

Accenture,

1 3413

How do you join more than 3 flat files in informatica?

ITC Infotech,

1 3180

Useful UNIX commands regular/frequently used

Deloitte,

1 4493

How to write the query . eid enm doj dob i want to display the names who worked more than 25 years .

1776

How to convert IBM Cognos generated XML to a readable XML format for ETL tools

1 2538

(1) Is it possible to create measures using objects from different context. (2) If cross context measures are not possible then what about @aggregate_aware() function ,here we use objects from different contexts. (3)Two measures from two different context ,can they be summed at report level.

1528

what is repositery?

IBM,

1843

Why the workflow is failed after running two hours in informatica?

GE,

1 2852

In work load management there are three options of Low priority, Medium priority and High Priority Jobs which can be used for resource management. why this feature is developed when there is already jobs prescheduled by scheduler or autosys. what will be the use of workload management then?

1501

if a variable contain dates like "2015/01"---"2015/12" (yymm) ,How to add day to those dates,if them month is jan then 31 if the month is feb then 28 so on ...

Accenture,

1405

What's the difference between VAR A1 - A4 and VAR A1 - A4?

Quintiles,

1 4959

Un-Answered Questions { Data Warehouse }

Mention what is PROC in SAS?

1057

How to create a new calendar in CMC? Can u please tell me the process to create the required calendar. Ex:- Year of that calendar to start with Jan-15 and ends with Jan -30 and the Next month to start with Feb-31 and ends with Feb-14.

2445

: and & modifiers.

1393

What is drill down and slicing and dicing whats the difference between them?

1073

Name any two stages of the data processing cycle and provide your answer in terms of a comparative study of them?

1121

What is the difference between a data mart and a data warehouse?

1044

Explain the difference between oltp and olap?

1123

Difference between cold fusion 5 and cold fusion mx 6?

995

Why teradata is used?

1007

What is the importance of eme in abinitio?

1135

What is the meaning of Caching in Teradata?

1141

List few etl bugs?

944

What is logical data model?

1204

Why fact table is in normal form?

1251

What do you understand by SOA of Informatica?

989

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