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Informatica Interview Questions
Questions Answers Views Company eMail

how to insert header after each group.

IBM,

1 1983

5. Consider the following products data which contain duplicate rows. A B C C B D B Q1. Design a mapping to load all unique products in one table and the duplicate rows in another table. The first table should contain the following output A D The second target should contain the following output B B B C C

1220

How to convert a row into column and a column into rows? Name all DTM threads. What all threads stop when we issue STOP or ABORT? How to pass the value of a data(variable kind of) from one session ( generated in mapping) to another session in the same workflow... What are the tyoes of partitioning you know and how to apply them in real time ... Can partitioning be applied to expression transformation and how

CTS,

979

What happen if you have 3 ports in SQ and 4 ports in SQL override of SQ( provided all ports are in same order and they are connected with proper source and target)? Also what happens when I have 4 ports and will extract 3 values in SQloverride.. What will be the value in 4th port ?

CTS,

1008

how lookup transformation is made active in new versions... When to use connected and when to use unconnected lookup and why? which is good for session performance. How to make lookup persistent and how to remove stale data from that lookup. how commit works - when we stop or abort data. Explain in both cases. What is factless fact table and have you ever used it in real time scenarios.

CTS,

1064

I have 10 columns in a flat file and 10 rows corresponding to that columns. I want column number 5 and 6 for last five records. In unix as well as informtica.

CTS,

1038

What if i will group by with some port in aggregator and will not pass the sorted values. Will the session fails tell in both cases ( if i have configured it for sorted input and if i have not configured it for sorted input).

CTS,

1 1237

can i any one explain me realtime healthcare project explanation..for interview .iam new to informatica .thanks in advance.

2895

Workflow is long running due to long running sql query so when we refer the query plan it tells the issue is due to partition of the db table. How to handle this?

1085

what are all the deliverables of ETL informatica power center project? what are all updated or created by etl developer as his everyday activities?

1485

How to create the list file having millions of flat files while indirect loading in informatica? In indirect file loading, suppose we have less no.of flat files then we can enter files names manually in list file creation. If millions of files are there, how can we enter the flat file names in list file?

HP,

1203

In indirect file loading, suppose we have less no.of flat files then we can enter files names manually in list file creation. If millions of files are there, how can we enter the flat file names in list file?

HP,

1 2051

Some flat files are there, out of these having some duplicate. How do you eliminate duplicate files while loading into targets?

IBM,

1130

There are 10 flat files; out of 10 files 1 file is empty. How do you identify the empty file? How can you load all files into targets?

Accenture,

1 2224

How do you join more than 3 flat files in informatica?

ITC Infotech,

1 2080


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Un-Answered Questions { Informatica }

Suppose we have a source qualifier transformation that populates two target tables. How do you ensure tgt2 is loaded after tgt1?

460


Source and Target are flat files, Source table is as below ID,NAME 1,X 1,X 2,Y 2,Y On Target flat file i want the data to be loaded as mentioned below ID,NAME,REPEAT 1,X,2 1,X,2 2,Y,2 2,Y,2 How to achieve this, Can i get a map structure

6109


How do you remove duplicate records in informatica? And how many ways are there to do it?

481


Differentiate between Load Manager and DTM?

1433


How to create or implement slowly changing dimension (SCD) Type 2 Effective Date mapping in informatica/Flagging mapping in informatica/visioning mapping in informatica?

521






Please let me know how to make Data masking in informatica..

1098


What is a joiner transformation?

393


What is meant by target load plan?

405


What are the types of schemas we have in data warehouse.

380


Repository user profiles

1213


What is DR strategy for Informatica project?

496


Explain the difference between a data warehouse and a data mart?

444


What is Data Caches size?

490


Explain the aggregator transformation?

465


What is workflow monitor?

418