What is the need for an etl tool?

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More Informatica Interview Questions

What do you mean by filter transformation?

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if we have input eno 1,2,3,1,2,3 year 2001,2002,2003,2001,2002,2003 and sal 10000,20000,30000,20000,30000,40000 ex-output eno totsal 1 30000 2 50000 3 70000

7 Answers  

Can we use different lookup tranformations for a same lookup table (lookup condition may or may not be same)with different output ports? How the cache files will be affected? Please clarify..

1 Answers  

. Design a mapping, first two phone calls received by a customer must be represented as "Home" , "Office" and the next calls must be concatinated and represented as "Other".Look at the below tables :: Source Definition Customer Phone_Number A 9848403211 A 9812675432 A 9112356788 A 9876503276 B 9567890765 B 9876098567 AND THE TARGET IS Customer Home Office Other A 9848403211 9812675432 9112356788,9876503276 B 9567890765 9876098567 Null

3 Answers  

Can we insert ,update ,delete in target tables with one update strategy tran.?

2 Answers   Zensar,

How to delete duplicate records if we have huge volume of records in a table ? (rowid is not the correct approach)

6 Answers   Puma,

whats the option in informatica 7 version is outdated in informatica 8 version onwards.

1 Answers   iGate,

What is joiner transformation in informatica?

0 Answers  

how can u generate sequence of values in which target has more than 2billion of records.(but with sequence generator u can generate upto 2 biliion only)

6 Answers   Accenture,

performance wise which one is better in joiner and lookup transformation?why?explain clearly?

1 Answers   IBM,

1)What is Data Masking in informatica? 2)How to restrict junk characters while loading data into target. 3) what happen if i won't pass sorted input in a transformation.

0 Answers  

if i hv 6 table as source table but can i make 12 as a dim table and 6 as fact table belongs to that src table.

0 Answers   iGate,