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Data Warehouse General Interview Questions
Questions Answers Views Company eMail

What is source qualifier?

2 10186

Difference between DSS & OLTP?

IBM,

6 51562

Explain grouped cross tab?

2585

Hierarchy of DWH?

Accenture, EDS, IBM, iFlex, TCS,

2 19059

How many repositories can we create in Informatica?

Informatica,

14 28681

What is surrogate key?

IBM, Informatica,

5 22455

What is difference between Mapplet and reusable transformation?

UST,

3 7444

What is aggregate awareness?

2 7939

Explain reference cursor?

2132

What are parallel querys and query hints?

2191

DWH architecture?

6 18513

What are cursors?

4 9059

Advantages of de normalized data?

2 11343

What is operational data source (ODS)?

2 10470

What is meta data and system catalog?

2263


Post New Data Warehouse General Questions

Un-Answered Questions { Data Warehouse General }

What is dimensional modelling?

950


Explain difference between data ware house & data mart?

952


What are the reasons to use a chameleon method in data warehousing?

1017


What is index awareness in universe?

984


What are the methodologies of data warehousing?

944


Difference between cold fusion mx 6 and cold fusion mx 7?

813


What is the extension of file to save template?

980


How do you create surrogate key using ab initio?

958


Explain the differences between normalizer and normalizer transformation?

975


Explain where do we use semi and non additive facts?

981


Explain how many ways you create ports?

980


What is aggregate fact table?

952


Explain a relation schema and a relation?

1063


Explain the definition of normalized and denormalized view?

867


Explain what is the difference between view filter and report filter?

939