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Data Warehouse General Interview Questions
Questions Answers Views Company eMail

What is source qualifier?

2 10183

Difference between DSS & OLTP?

IBM,

6 51561

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 28677

What is surrogate key?

IBM, Informatica,

5 22455

What is difference between Mapplet and reusable transformation?

UST,

3 7444

What is aggregate awareness?

2 7933

Explain reference cursor?

2132

What are parallel querys and query hints?

2191

DWH architecture?

6 18510

What are cursors?

4 9053

Advantages of de normalized data?

2 11340

What is operational data source (ODS)?

2 10470

What is meta data and system catalog?

2261


Post New Data Warehouse General Questions

Un-Answered Questions { Data Warehouse General }

What are Non-additive facts?

1126


How can we determine what records to extract?

1044


What is Analysis Services?

2084


Can decision tree be implemented using SQL?

2084


Explain meta data?

980


How to export mappings to the production environment?

853


In document how to create metrics?

954


What are session timeout and application timeout? Where we have to do this process?

995


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

813


What are the different types of join operations?

957


Code the tables statement for a single-level (most common) frequency?

897


Explain grouped cross tab?

2585


What is VLDB?

1022


What is called data cleaning?

1171


Explain difference between e-r modeling and dimentional modeling?

937