Answer / srinu

Perf Tune is not an simple Question !!!!
its a process !!!

Performance of Informatica is dependant on the performance
of its several components like database, network,
transformations, mappings, sessions etc. To tune the
performance of Informatica, we have to identify the
bottleneck first. Bottleneck may be present in source,
target, transformations, mapping, session, database or
network.
Identify bottleneck in Source
Identify bottleneck in Target
Identify bottleneck in Transformation
Identify bottleneck in sessions
DATABASE OPTIMISATION
OPTIMUM CACHE SIZE IN LOOKUPS


so and so,,,,,,,,,,,,,,,,

Answer / mohanreddybank

First we need to identify the bottlenecks,
Then we need to do peer review

Answer / karthik

Guys we know the bottle necks, but pls tel us how do we
resolve it..

for example :

if source is reading the date very slowly, how do we solve
that??

what is the diff b/w target load plan and cbl?

3 Answers   CTS, iGate,

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can we use bulk loading when we use look in mapping

1 Answers   TCS,

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How does a sorter cache works?

0 Answers  

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Design a mapping to calculate department wise sum of salaries and load it in single target? Source Target Deptno Salary Deptno Salary 10 100 10 600 10 200 10 600 10 300 10 600 20 200 20 800 20 300 20 800 20 300 20 800 30 400 20 1500 30 500 30 1500 30 600 30 1500

0 Answers   Cap Gemini,

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Had any one faced informatica(ETL/Developer), Datawarehouseing interview in UK. Than plz help me (i have any exprience of 3yrs informatica,datawarehousing,oracle,teradata) 1.hw the procedure will b here 2. wht type of question's they will b asking. 3.In which area they concertate more. since this is the first time im facing interview in UK. plz help ASAP.it will b a great help for me thanks to All in Advance

2 Answers  

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I have a mapping loading 100 records and it failed on 20th record. how to recover it without changing anything.(in prod where we don't have any access).. (the session should should start from 21 record)

0 Answers   Saama Tech,

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In dept 10, 5 emp sal, i want to do sum of dept 10 emp sal. Is there any othere transformation than the aggrator? if yes how?

5 Answers   Patni,

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Why we use stored procedure transformation?

4 Answers  

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Mapplets can you use an active transformation in a mapplet,

1 Answers  

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i hav a scenario like this i want load data from source to target as follows frist it counts the num of deptno and display with that with count and how many times it reapts along with all the records in source

1 Answers  

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a flat file having 1 laks records. if i want convert excel file what happen. (bcz a exccel sheet having 65536 colums but flat files one lak columns). how to get one laks colums in excel sheet .

2 Answers   TCS,

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can session assigned multiple mappings or not?

2 Answers   Zensar,

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