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Data Warehouse Interview Questions
Questions Answers Views Company eMail

How will you load you daily/monthly jobs datas in to Fact and Dimension table using datastage.

CTS,

3462

If i havee 3records in my source having same deptno like Deptid Deptno ------ ------ 101 10 201 10 301 10 and i am using router TR to loading these records into target.Then how many record'll be loaded into target???

Wipro,

5 11638

if reading an external file to produce an external file, what is the shortcut to write that record without coding every single variable on the record

HSBC,

4 10070

What is difference between 8.1 , 8.5 and 9.1 ?

IBM,

1 16169

Hi All, I have three question. 1) How to remove the header and footer in a flat file in informatica? 2)How to load the first and last record of flat file into the target? 3)I have a Input and Output table. Input Name Salaray Month A 100 Jan A 200 Feb A 300 March B 400 April B 500 May B 600 June Output Name Salaray Month A 100 Jan A 300 Feb A 600 March B 400 April B 900 May B 1500 June How to implement and get the ouput as mentioned above. If Possible kindly provide the SQL query also. Kindly any one help to implement this concept. Thanks, Pradeep

CSC, iNautix,

3 18463

Hi all, i have a requirement in Conditional drill through. I have a list report with Cities India, UK, USA, China, japan, Canada.... In the above cities i want to give Hyperlinks(Drill) for Only India & UK. Could you please send me the steps????

1 5429

Hi all, I have a list report with Country, City & Revenue. In the run time i want to hide the particular column. I have tried using Java script but i didn't get any out comes. Please any one share steps for me....

2 6143

How can we read latest records in a text file named file1.txt using seq file stage only? file1 having 100 records in that 5 record sare latest records.How can we read that latest records?

Caterpillar,

3 11781

delete data from staging table as it loads to target table.here is the case we are getting data from 3 different server.a b and c.the data from server A loaded into staging table and we ran the task and data loaded to target table.now today data from server B and C also got loaded to the staging table.now what techniques and what transformations should be used to delete only the data which has been loaded only to the target.we need to delete only that data from staging which has been loaded into the target.looking for your responses

Motorola,

2 6260

Why joiner transformation does not allow the aggregator transformation and expression transformation to join

2 10115

What is the Difference between Change capture stage and Difference Stage ? What are its significance individually ?

1 21544

how to do aggregation (year wise quantity ) using only source qualifier, the source is sql server date as datetime data type and target as flat file with year (string datatype)

Thomson,

2703

IF Sorce table contains CLOB as its one data type then i get error at the target table. How can this be resolve?

2 6578

I have one source table and three target tables. When the session runs for the first time involving the mapping,i want that the loading should take place in 1st Target table only. The 2nd time the same session runs the loading should take place in 2nd Target only only and similarly when the session runs for the 3rd time loading should take place in Third only. And again when the session runs for the 4th time loading should take place in 1st Target table.

Cap Gemini, IBM,

4 13337

what is set mapping in datastage??

ADP,

2 11200


Un-Answered Questions { Data Warehouse }

How to identify ppi columns?

1186


How do you load unique records into one target table and duplicate records into a different target table?

1269


Why filter transformation is an active one?

991


how to load the data to fact table?

2711


What are the different lookup cache(s)?

1123


What are the different uses of a repository manager?

1105


Explain the different kinds of facts.

987


What are the reasons for which business can trust the approach of data processing?

1188


What was the last computer book you purchased? Why?

2378


Explain about a task that really tested your analytical abilities?

1256


my table having data like this year month revenue 2011 jan 100 2011 feb 200 2011 mar 150 like this i want My report 2011 jan 100 2011 feb 100+200=300 2011 mar 300+150=450 like this for this where we specify the condition how will specify? pls ans me pls...

4225


suppose we are using dynamic lookup cache and in lookup condition the record is succeeded but in target it is failed due to some reasons then what happened in the cache ?

7260


how many modules are there in telecome domain?how to explain the architecture?

2018


is there any way to read the ms excel datas directly into informatica?like is there any possibilities to take excel file as target?

1210


what is stitch query in reportnet?

1108