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Informatica Interview Questions
Questions Answers Views Company eMail

performance wise which one is better in joiner and lookup transformation

2 6577

which transformation uses cache?

Keane India Ltd,

3 7339

suppose we have 1 to 10 records.In router transformation we had given two condition A>= 5 A<=5 then what will be the output?

emc2,

2 6992

In update strategy t/r we had given dd_insert condition & in session we gave delete condition . Then what will happen? mapping will run ?

emc2,

3 8027

In SCD type 2 if we had select date range. then suppose we had inserted today's date(eq. date is 30 aug 2010) then start date will be today's date(30 aug 2010) what will be the end date,we cant leave it blank?

Cognizant, emc2,

2 8295

Explain Dataware house architecture .how data flow from intial to end?

Keane India Ltd,

2591

how many new transformations are introduced in 8.1 which are not available in 7.1? any new transformation in 8.6?

emc2,

2 5313

suppose i have 1000 records and i want to load half of the record in target 1 and half in target2.how u'll do?

IBM,

9 13359

we have three columns and two rows. col1 col2 col3 a b c want to change into 2 columns and 3 rows ,how? col1 a col2 b col3 c which transformation u'll use and how?

Cognizant,

3 9566

can any one explain me about junk dimension

4 6691

where actually the usage of push down optimization happens...

2 5532

while for 100 records in source table loaded sucessfully in trgt table . assume ,session will take 10min or 5 min to successfully succeeded. then 100 million records r there in source how much time will take by session to succeeded. there no fail ok.trgt table will load 100 million records with out any errors . don't tell perfect time . assume your self how much time to succeeded?

IBM,

1 4989

What type of sorting algorithm does the Sorter Transformation use, to do its sorting Operation? 1. Bubble sort 2. Insertion sort 3. Shell sort 4. Merge sort 5. Heapsort 6. Quicksort 7. Bucket sort

3 11002

lookup is passive y can't it be active? let us say i have some records in my source like 101,rohit,1000 101,rohit,1000 102,kumar,2000 like wise now as it is having multiple matches i return only first,last value it can't return bouth the values that means lookup is acting as select distinct right by default what means it is active?

IBM,

5 8451

differnece between joiner and a look up(please don't give just definitions)....i mean in which scenario it is better to use joiner and in which scenario better o use lookup ??

IBM,

2 6277


Post New Informatica Questions

Un-Answered Questions { Informatica }

What is the difference between source qualifier transformations source filter to filter transformation?

1061


In which transformation you cannot drag ports into it?

1326


in reporting we add some new objects,how we get the count of the newly added objects to the report

2201


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

2186


Write the different tools in the workflow manager?

1074


According to his methodology what all you need before you build a datawarehouse

1761


Write the unconnected lookup syntax?

1088


What is a predefined event?

1097


What are the new features of informatica 9.x developer?

975


What are the challenges you have faced in your Project (DWH- ETL)? Explain with example?

8206


What does command task mean?

1159


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

1118


What does reusable transformation mean?

1142


can anyone suggest best free Talend data integration training online

1698


Why update strategy and union transformations are active?

1051