Informatica Interview Questions
Questions Answers Views Company eMail

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

1555

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??

604

Tell me about MD5 functions in informatica

555

Tell me about Propagate functions in informatica

562

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

1197

How you prepared reports for OLAP?

1202

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

1377

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.

1810

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

2245

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.

1781

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.

1971

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.

2938

Difference between task flow and linear task flow

2725


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Un-Answered Questions { Informatica }

How to join three sources using joiner? Explain though mapping flow.

733


What is informatica?

715


What are the validations that you can perform in oracle and in informatica ? Advance Thanks

1690


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

1455


How to elaborate tracing level?

728






Write the unconnected lookup syntax and how to return more than one column.

628


What is sequence generator transformation in informatica?

660


What is union transformation in informatica?

733


what are the best practices to extract data from flat file source which are bigger than 100 mb memory?

1964


What is a standalone command task?

712


what is the -ve test case in your project.

1896


My source is delimited flat file Flat file data is H|Date D1|ravi|bangalore D2|raju|pune T|4 The data will be send to target if the fallowing two conditions satisfied 1.The first row Date column is equal to SYSDATE 2.Last record second port equal to number of records. How to achieve?

5648


How many transformations can be used in mapplets.

1497


What are the popular informatica products?

678


What is the need of etl tools?

650