One of the optimizing technique to improve the session
performance is push down optimization,by using push down
optimization we push as much as transformation logic to
source/target database,but this degrades the d/b
performance,how to overcome this?
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3,if our source containing 1 terabyte data so while loading data into target what are the thing we keep in mind?
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The structure of source file is as below: Source structure(two fields) Name, Card NUmber A, 111111111(SSN) A, 01010101(Creditcard number) A, 34343434(Debit card number) B, 55555555(Creditcard number) C, 77777777(Debit card number) Target Structure(4 fields) Name,Credit card,SSN,Debit card A,01010101,111111111, 34343434 B,55555555,, C,,,77777777 Corresponding to one name there can be maximum 3 rows and minimum zero rows. Given that I do not know which record might have a particular type of number. How can I handle above requirement with informatica transformations?
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Teradata 
