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Data Warehouse Interview Questions
Questions Answers Views Company eMail

what is hash file

CTS, IBM,

2 5951

write sql query following table pname description lux soap sunsilk shampoo lux shampoo sunsilk soap clouseup soap closeup paste i want the output like pname description lux soap sunsilk shampoo lux soap sunsilk shampoo closeup paste closeup paste

TCS,

1 5333

write sql query vertical to horiozontal following table id name 1 100 2 dinesh 3 india 1 101 2 suresh 3 india 1 103 2 prakesh 3 usa i want output like id name country 100 dinesh india 101 suresh india 103 prakesh usa

TCS,

2617

i have 2 flat files one table contains duplicates another one no duplicates.... so i need like this i don't want duplicates...pl's give me ans...

Keane India Ltd,

4 8955

As per Informatica PC help guide, while adding transformations to a mapplet,we have to keep this in mind: If you use a Sequence Generator transformation, you must use a reusable Sequence Generator transformation. May i know the reason behind this?

2 6056

Can we schedule a workflow(not a session) to run after completition of another workflow? Can we make a workflow depend on completition of another one?

GE,

2 7126

in one scenario source flat file like Fileld1 00122001550056200568 00256002360014500896 00123004560078900258 00147004560025800256 divide each 5 numbers as one column i.e here i need field1 field2 field3 field4 00122 00155 00562 00568 00256 00236 00145 00896 00123 00456 00789 00258 00147 00456 00258 00256 plz help me....

4 8122

Hello , I am unable to work with SQL transformation at least. Where do i need to give connection for sql transformaton ? At session level there is no property . I have created a SQL Transformation and chosen query mode. But do i need to pass connection information to it ? I don't know where do i need to write a query ? I have written a query in file and that file path i gave in the properties of SQL Transformation. But it is not working. Could any one of you please let know how can i work with SQL Transformation? Advance Thanks.

IBM,

2905

i have a data set with 20 observations i want label from 8 to 15 observations ? how you create this one.

CTS,

6 13195

if i have source with 100 records target with 100 records and we lookup on another database table and it has 10 million record so what is the method of limiting that much record in lookup table?

TCS,

2 6379

if i have a delimited file as source so how can we seperate this file into three diff targets?

TCS,

2 5610

if the column name in sql override is diff from the column name in source qualifier,what is the impact?

TCS,

5 9777

what is unique constraint error ?

TCS,

2 6636

How do you load Multiple files to a table by using fastload scripts?

Satyam,

1 12263

Aborted in Phase 1 data Acquistion Incomplete in fastload?

2 5701


Un-Answered Questions { Data Warehouse }

What is derived metric?

1044


What are the special input delimiters used in SAS?

1251


What is the data type of the surrogate key?

1080


What are all the points to keep in consideration, while we are migrating the Universes,Reports from BO5.1.6 to BO 6.5? Is is compatible to migrate like this? Does it effect the filters in Reports and Join in the Universe?

2092


what is granularity in Data ware House?

1794


Do you need to compute new variables? If so,should you do this before you execute the report-writing procedure?

1968


How to generate cubes in cognos?

1029


What is the differnce between SDTM 3.1.2 to 3.1.1 version

5129


Where is teradata rdbms used?

1145


Demonstrate experience in maintaining quality process standards?

2657


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

996


How transaction file different from that of a sort file?

1479


ware house management system is used?

1059


What is dimensional modelling?

1041


What is auto call macro and how to create a auto call macro? What is the use of it? How to use it in sas with macros? : sas-macro

1084