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Data Warehouse General Interview Questions
Questions Answers Views Company eMail

How to handle multi value dimensions?

 2288

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

 2 10712

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

 1 7188

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

4 23320

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

 2762

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

Patni,

1 8624

What is Grain & Granularity in Data Warehouse.

TCS, TVS,

2 46238

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,

2238

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 8933

Disply the dname wise maximum salary

Principal Finance,

9 11825

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,

1986

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

 2 6472

Name at least three brands of Database Management Systems

 1 4662

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

Wipro,

1 5782

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

CTS, IBM,

2 8067

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Un-Answered Questions { Data Warehouse General }

Explain why fact table is in normal form?

970

Explain can report net connect multiple datasource at a time in report creation time?

926

Why denormalization is promoted in universe designing?

987

Explain how many ways you create ports?

1024

What are snapshots? What are materialized views & where do we use them?

1043

What is data analysis?

958

what are the different views that are considered when building an object-oriented software system?

1031

What is ods (operation data source)?

997

What is fact less fact table? Where you have used it in your project?

1011

What are the key features of chameleon that separates it from other algorithms?

1117

Explain if a flat file cotains 1000 records how can I get first and last records only?

931

What are the approaches used by optimizer during execution plan?

909

What are necessary tasks to install reportnet software?

922

What is informatica architecture?

1065

What is the difference between snowflake and star schema?

1050

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