Informatica Interview Questions
Questions Answers Views Company eMail

What is Java Transformation? what are the uses of it?

TCS,

2406

Create a mapping which contains 2 target tables. When the session runs for the first time it shud load Target table 1 and when it runs for second time it shud load Target table 2.

TCS,

7 12799

source name sal aaaa 2000 bbbb 3000 abcd 5000 Target name sal aaaa 2000 bbbb 3000 abcd 5000 total 10000 how to get total as new row and sum as 10000 thanks

Polaris,

4 6690

If a table contains 100 records we have to fetch 50-100 records from source to target?how

CSC,

7 10174

Are there any types of Dynamic Caches in informatica

Accenture,

4 7437

i have two sources two flatfiles same structure one flatfile contain 100 million recs another flatfile contain 10 million recs i have to connect single target(performance oriented answer) what are the steps we have to do this scenario

Polaris,

4 7108

I am having two tables,say table1 having cols Empid,firstname,lastname,middlename and table2 having Empid,firstname,lastname can i union them using Union t/f?

Accenture,

6 9312

hi guys..iam a QA person ..what is ETL TESTING... what is the process of ETL testing... ETLTESTER needs etl devolopment knowledge or not? pls suggest ur valuable decision

2 7979

what is INFORMATICA TESTING process

1828

PLS REAL TIMERS IAM WAITING FOR FAVOROBLE REPLY..REGARDING ETL TESTING INFORMATION...ETL TESTER NEEDS ETL DEVOLPMENT KNOWLEDGE OR NOT..?. IF HE NEED DEVLPMNT KNOW WHAT HE LEANR FIRST... AS A DEVOLOPER U KNOW THE ETL TESTING PROCESS.. PLS EXPLAIN IN DETAIL THANK U

2 3811

hi real timers . iam waiting for ur reply regarding ETL TESTING

1791

Can we update a target table (without primarykey) by using update strategy transformation?

TCS,

4 21905

What is the main purpose of Unconnected lookup other than updating slowly changing dimensions? or In which case u use Unconnected lookup?

TCS,

2 6382

Aggregator transformation is having fields say a,b,c,d,e group by is enabled on a,b,c with sorted input,How the aggregator transformation process the i/p data?or in which way i/p comes to agg transformation

TCS,

1 4235

Which one is better performance wise connected/un-connected lkp?why?

HCL, TCS,

2 12566


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Un-Answered Questions { Informatica }

What are the advantages of using informatica as an etl tool over teradata?

558


How to display session logs based upon particular dates. If I want to display session logs for 1 week from a particular date how can I do it without using unix. ?

1595


What is a filter transformation?

555


Explain incremental aggregation in informatica

642


Explain the different lookup methods used in informatica?

574






What is aggregator transformation in informatica?

532


Which version configuration tool used in ur project?

2758


what is the size of your data warehousing?

1660


What are the components of the workflow manager?

630


Differentiate between a database and data warehouse?

643


Mention few power centre client applications with their basic purpose?

525


Under what condition selecting sorted input in aggregator may fail the session?

653


Explain the shared cache and re-cache?

602


What are active and passive transformations?

637


Explain how to import oracle sequence into informatica?

578