Informatica Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Informatica Interview Questions

Questions Answers Views Company eMail

In incremental loading using Mapping variable if session failed with any of reason in the middle of process. is the Mapping variable remains constant or change?

TCS,

1 10670

guys which is the best institute in banglore to learn informatica??

2 5862

1)What is Data Masking in informatica? 2)How to restrict junk characters while loading data into target. 3) what happen if i won't pass sorted input in a transformation.

7082

How to fasten loading of 100 million distinct records in informatica? (Initially they are loaded into target without using any transformation, taking 2 hours)

Atriax,

3 11327

I have id, seq_no date, bill_amt and weight 1,11,'01-Jan-2014',100,2 2,12,'01-Jan-2014',40,5 3,13,'01-Jan-2014',32,5 4,14,'01-Jan-2014',98,2 5,15,'01-Jan-2014',105,3 6,16,'01-Jan-2014',11,3 1,11,'02-Jan-2014',40,2 2,12,'02-Jan-2014',100,5 3,13,'02-Jan-2014',132,5 4,14,'02-Jan-2014',198,2 5,15,'02-Jan-2014',15,3 6,16,'02-Jan-2014',16,3 Now I need output as date MXAMT_LSTWGHT MINAMT_GRTWGHT 01-Jan-2014 100 32 02-Jan-2014 198 100 Could not think of mapping to do so. Please help

Axtria,

1 5675

What is informatica? What exactly are the practical uses in real world

2 6184

If there are 3 workflows are running and if 1st workflow fails then how could we start 2nd workflow or if 2nd workflow fails how could we start 3rd workflow?

TCS,

4 11904

How can i maintain unique surrogate key if 2 seperate workflows from different repository run and insert/update the main table at the same time.

Barclays,

9 15724

how to get max value record into one target and remaining records into another target?

Accenture,

2 9742

Load data to multiple targets according date. When First time session runs it should send to 1st target,second time session runs then send to 2nd target and goes on how to achieve it

1 3670

Scenario:- Below is the requirement. Source:- NAME ID Requirement RAVI 1 (no need to repeat as it ID is 1) KUMAR 3 (repeat 3 times as it ID is 3) John 4 (repeat 4 times as it ID is 4) Required Out Put:- Name ID RAVI 1 KUMAR 3 KUMAR 3 KUMAR 3 John 4 John 4 John 4 John 4 Scenario 2:- Source Data ID NAME 1,2 NETEZZA,ORACLE 3,4,5 SQL Server, DB2, Teradata Required Output:- ID NAME 1 NETEZZA 1 ORACLE 3 SQL Server 3 DB2 3 Teradata

Cognizant,

1 4855

What is Collect performance data in informatica and what is the use of it.

Informatica,

1 11716

Consider a Phone Log table as below. It records all phone numbers that we dial in a given day. SOURCE_PHONE_NUMBER DESTINATION_PHONE_NUMBER CALL_START_DATETIME 1234 4567 01/07/2011 10:00 1234 2345 01/07/2011 11:00 1234 3456 01/07/2011 12:00 1234 3456 01/07/2011 13:00 1234 4567 01/07/2011 15:00 1222 7890 01/07/2011 10:00 1222 7680 01/07/2011 12:00 1222 2345 01/07/2011 13:00 Please provide an SQL query to display the source_phone_number and a flag where the flag needs to be set to Y if first called number and last called number are the same and N if the first called number and last called number are different. Desired Output: Source Number Is_Match 1222 N 1234 Y

Amazon,

2 9274

I have 2records in target table and this record is deleted in source. Now if I run mapping twice how many records do target will have, source having 10records. Same with incrementally. Please answer me ASAP.

Cipla, Quintiles,

1 4604

How do you change parameter when you move it from development to production.

1 3021

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Un-Answered Questions { Informatica }

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.

2902

in u flatfile some of fact records are missed then u load the diminision records are not if u load diminsion records what about fact table records

2294

How to implement security measures using repository manager?

1246

What is a rank transform?

1148

HOW TO PROCESS THE ROWS FROM JOINER AND EXPRESSION TRANSFORAMTION TO SORTER TRANSFORMATION

1949

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

2358

have u done any performance tuning? how u ll do?

2370

Suppose on 1st Nov 2010 you had created a mapping which includes huge aggregator calculations and it is under process for next two days. You will notice that even on 3rd day also its still calculating. So without changing a logic or changing a mapping How will you troubleshot or to run that mapping? Explain the steps

2088

How can repository reports be accessed without sql or other transformations?

1271

which one is better performance wise joiner or look up

1155

what is degenerated dimension?

4101

In which transformation you cannot drag ports into it?

1381

What is the status code in stored procedure transformation?

1236

What is the sequence generator transformation in informatica?

1268

How do you manage the Parameter files while migrating your data from one environment to another environment?

1070

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