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Data Warehouse Interview Questions
Questions Answers Views Company eMail

Can any one please provide me practical example of How to do the performance tuning in Query??

Amdocs,

5 11656

Why FLOAD does not support multiset tables??

TCS, Tesco,

3 14050

What is collect State in Teradata ? what it use and how it works??

TCS,

3 12937

What EXPLAIN does in Teradata, what is High confidence, Low confidence and No confidence.. And How we improve the query performance .

Accenture,

5 34277

What is the order of evaluation of the comparison && logical && relational operators:?

CitiGroup,

2 6512

proc means? proc sort? proc append? proc freq? proc print? proc content?

Oracle,

4 12787

it is possible to load two tables data into one sequential file?if possible how?plz share with me?

TCS,

6 12900

how to handle null values in sequential file?

HCL,

1 19630

how to handle null values using transformer stage?

 1 7773

how can u handle null values in transformer stage.

 7 27987

Disply the dname wise maximum salary

Principal Finance,

9 11826

Two workflows are running at same time first workflow is succeeded but second workflow is failed but there is no dependencies?

IBM,

1 6177

I am using Informatica 7.1.1. and i used emails task for getting emails but not able to get emails is there any settings in Informatica installation level?

 1 3771

How to use Normalizer transformation?

 2 5426

what are the limitations for bulk loading in informatica for all kind of databases and transformations?

Accenture, CSC,

3 15214

Un-Answered Questions { Data Warehouse }

What are the differences between datamart vs. Reporting cube?

1097

What are the designer tools for creating transformations?

1118

How can we run the graph? What is the procedure for that?

946

Define update strategy?

1229

My source is delimited flat file Flat file data is H|Date D1|ravi|bangalore D2|raju|pune T|4 The data will be send to target if the fallowing two conditions satisfied 1.The first row Date column is equal to SYSDATE 2.Last record second port equal to number of records. How to achieve?

1932

What do you mean by fastexport in teradata?

1002

What happens if the owner of an object does not exist in the destination project?

918

what do you mean by security filter?

1000

What are the differences between datastage and informatica?

1177

Theare is a Database In analysis services,How we will specify the fact table.(i.e whether we will create the measure objects for the fact tbl.) or it will reside insde the database.

1984

what are the basic features of cognos tm1?

5

What is Active Datawarehousing?

1016

hi all, I need the SAS DI DUMP(A00 260) for attending the certification. if any one have, pls provide it.Please Email to vrpotluri@hotmail.com. Thanks - Ramana

5451

how does sas handle missing values in a merge? : Sas programming

1048

Explain what is aggregate table and aggregate fact table ... Any examples of both?

1115

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