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Data Warehouse General Interview Questions
Questions Answers Views Company eMail

How to handle multi value dimensions?

 2357

What are aggregate fact tables ? why they are needed? give an example

 2 10814

State any 5 of Cods guidelines of an OLAP system, brief description each?

 1 7277

what is difference between Independent Data Mart Dependent Data Mart 1- 1- 2- 2- 3- 3- 4- 4-

4 23470

Is there any difference in testing database and data ware housing?

 2807

Are facts same as metrics and dimensions same as measures? If not , please tell the difference?

Patni,

1 8696

What is Grain & Granularity in Data Warehouse.

TCS, TVS,

2 46356

what are confirmed dimension? We alwys give date as a conformed dimension but if it has different format for different contries say YYMMDD for italy and MM-DD-YYYY for france.Then are they not confirmed.

IBM,

2296

what are confirmed dimension? We alwys give date as a conformed dimension but if it has different format for different contries say YYMMDD for italy and MM-DD-YYYY for france.Then are they not confirmed.

IBM, MAHINDRA, Tech Mahindra,

4 9106

Disply the dname wise maximum salary

Principal Finance,

9 12081

i have scheduled a report in a job in the cognos8.3 which would send the reports to the respective user ,now the repot ran and is sent to the respective user but it contains some unwanted data. So based on the senario can any one tell me that can we recall back the report ??????

Wipro,

2038

Is it possible to have more than one row on the same table with the same foreign key?

 2 6571

Name at least three brands of Database Management Systems

 1 4770

I HAVE A FLAT FILE DO THE NULL CHEK AND PRIMARI KEY CHEK AND DATE VALIDITAION LOAD TO TARGET TABLE

Wipro,

1 5849

Tell me the Top 10 features of oracle that supports datawarehousing.

CTS, IBM,

2 8170

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Un-Answered Questions { Data Warehouse General }

What is the difference between olap and datawarehosue?

1006

What are the approaches used by optimizer during execution plan?

963

What are session timeout and application timeout?

1059

Explain dimension table ?

1043

What is the difference between ods and oltp?

1079

does anyone "QlikView" BI tool. if you have any docs send me pls. yaparas84@gmail.com

6029

What is dimensional modelling?

1035

What is recovering sessions?

997

Explain what is a three tier data warehouse?

1033

How to drill through from a powerplay cube to reportnet?

990

Explain difference between data ware house & data mart?

1031

Suppose your client wants to ensure only specific users can create reports in query studio with other users creating reports using report studio. How can this be accomplished?

975

How can we load the time dimension?

1250

What are the difference between snow flake and star schema? What are situations where snow flake schema is better than star schema to use and when the oppositeis true?

1114

What are the fundamental elements of the data warehouse?

1052

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