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 the key elements of a data processing system?

1254

What are the kinds of layouts does ab initio supports?

1003

What are the primary keys and foreign keys?

1150

What exactly do you understand with the term data processing and businesses can trust this approach?

1116

Have you used the rollup component? Describe how?

1128

What is the use of aggregation when we have rollup as we know rollup component in abinitio is used to summarize a group of data record? Then where we will use aggregation?

1271

Explain about ab initio’s dependency analysis?

1177

What is the purpose of having stored procedures in a data-based?

1107

Describe in detail about lookup?

1090

Why do you think data processing is important?

1140

What are the steps to create a repository in ab initio?

1263

What are the facts that can compromise data integrity?

1155

What a local lookup is?

1061

How many components in your most complicated graph?

1312

Define ramp limit in ab initio?

1295

Un-Answered Questions { Data Warehouse }

How to publish a package by running Java Script?

2093

What are key differences between sql server and amazon redshift?

How analytics process your request when you create your requests?

941

What is an error log table in informatica occurs and how to maintain it in mapping?

972

I have worked on Informatica 7.1.1. I want to know the answer for the below question. Target is not created initially.Then how to take the DDL script from the source and run the Mapping by creating the Target dynamically?Is it possible by SQL Transformation?

1912

if you were told to create many records from one record, show how you would do this using array and with proc transpose? : Sas programming

1073

How will you load you daily/monthly jobs datas in to Fact and Dimension table using datastage.

3466

Can I create a master report in webi having 15 dimensions and 150 kpi's with 100GB of data and store it in cache ,So that I can use Cache for building new reports with less dimensions and Kpi's without hitting database againg just using cache??Please suggest...

2137

Why filter transformation is an active one?

992

What are the mapping paramaters and maping variables?

1041

what is the difference between list and crosstab?

What are cluster in redshift?

What is active and passive stage?

1419

Which algorithm you used for your hashfile?

1188

What is a shortcut and copy in Informatica and how two are different with each other?

1205

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