Informatica Interview Questions
Questions Answers Views Company eMail

How do you load only null records into target? Explain through mapping flow.

1488

IN SCD1, insource we have 10 billion records and in the first day its uploaded successfully and in the second day its taking time to upload because some records it might get update or insert new records. As a developer what will be the better solution for this??

551

Tell me about MD5 functions in informatica

515

Tell me about Propagate functions in informatica

518

How to update a particular record in target with out running whole workflow?

1149

How you prepared reports for OLAP?

1143

How you know when to use a static cache and dynamic cache in lookup transformation?

1331

Q. WE ARE LOADING ORACLE TABLE THE PROCESS RUNS THREE HOURS. THIS TABLE IS BEING USED BY SOME DOWNSTREAM TEAMS SO WHAT WE WANT IS IN BETWEEN RUN IS PROGRESS IF ANYONE IS FETCHING THE DATA FROM THE TABLE THEY SHOULD SEE DATA TILL YESTERDAY TILL THAT. AFTER THAT PROCESS IS COMPLETED ONLY THEN TEAM SHULD BE AVAIBLE TO SEE TODAY DATA UPDATED. WE DONOT WANT TO LOG THE TABLE. NEED APROACH FROM YOUR SIDE.

491

Q. We are the loading the table on daily basis it is incremental loading. and A person rahul slary was 10000, so if i check before run my salalr is 10000. but toay there is update that my sal is 15k but that will come to know after the load. braod crtiteria is we donot want to show downstream teams partial updated data. need aproad as etl developer

445

Q. source having mutile depatment of data, dept1, dept2 ....dept10 today. we have mutilple depts in source, we need to generate dept1, dept2 and multile files in target side. today we have 10 dept which have 10 files, tommorow we have only 4 dept and 4 files, dayafter tommorow we have only 6 all the number of files in the targete file directory it's always dynamic. how can acheive it.

438

Q. Informatica workflow, it is running beyond two hours for last couple of runs, normally it completed less then 30 min., hardly 40 min, last couple of run crossing 2 hours and more in that workflow only one session. now it is aasign to you that how to idenitfy the performance issue of the sesion of production.

476

Q. In source area, it is use complex query we have using 5 to 10 table we has been join now all join clolumn having indexes but still we having performance issue. how to fix the performnce issue of the query.

516

Difference between task flow and linear task flow

500


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Un-Answered Questions { Informatica }

What's the layout of parameter file (what does a parameter file contain?)?

1911


How to convert multiple rows to single row (multiple columns) in informatica

887


what is diff b/t sorter t/r and agg have the option sorter property...

1733


Clarify the utilization of aggregator cache record?

568


Why sorter is an active transformation?

740






Make a note of the quantity vaults made in informatica?

545


Explain the different kinds of facts.

554


Explain about cumulative Sum or moving sum?

614


r u done any partitions in ur project?

1395


expain about the tune parameters?

1873


Define mapplet?

622


If the source has duplicate records as id and name columns, values: 1 a, 1 b, 1 c, 2 a, 2 b, the target should be loaded as 1 a+b+c or 1 a||b||c, what transformations should be used for this?

8519


What is the difference between a connected look up and unconnected lookup?

565


Can we use procedural logic inside infromatica? If yes how, if now how can we use external procedural logic in informatica?

593


The question was on time stamp. what is the difference between HH and HH24 when to use when.

1544