Interested to Buy Any Domain ? << Click Here >> for more details...
which one is costliest transformation? costliest means
occupying more memory. which one
Aggregator,sorter,filter,etc..
- 7 Answers
- 13639 Views
- TCS, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / cooldude
Sorter will be costliest transformation as it uses
temporary cache and its size is approximately to the size
of RAM.
| Is This Answer Correct ? | 8 Yes | 0 No |
Answer / savita
hi guys,
some one selected that Above ans is worng.. can any one
tell correct answer.for the above Question
| Is This Answer Correct ? | 6 Yes | 0 No |
Answer / srikanth
HI
Among those 3 trans, filter does not use cache.
so it should be either agg or sorter.
Both agg and sorter uses cache as they process data in a
dependable fashion for performing calculations and sorting
data before the result is passed to next transfomration.
WE cant say which one uses more space. it depends on the
size of source data we are processing.
Agg needs to perform calculations on groups of data but if
the data in sorter is more, it takes more space than agg to
hold the data.
for ex, we are sorting on character data, server needs to
use ASCII values of alphabets to sort in order.
It depends on the size of the source data.
| Is This Answer Correct ? | 6 Yes | 0 No |
Answer / jyothiram
XML is costliest transformation after sorter.
XML--- 10 units
sorter---8 units
lkup,joiner,agg,rank-(index)-1 unit
lkup,joiner,agg,rank-(data)-2 unit
These are the order of costlier in cache making
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / krishna
hey raj, pooja and savita the costliest transformatin till
Infa7.1.4 is lookup but after Infa 8.1 it guess it sj=hould
be JAVA.
| Is This Answer Correct ? | 1 Yes | 2 No |
Answer / pooja
HERE YOU MENTIONED ONLY 3 TRANSFORMATION, SO OUT THESE 3
aGGREGATOR IS COSTLIEST TRANS
| Is This Answer Correct ? | 2 Yes | 6 No |
Answer / raghu
aggregater is costliest bcoz it have cache, remaing d'snt
have cache
| Is This Answer Correct ? | 0 Yes | 6 No |
Why we use ENABLE HIGH PRECISION in session properties?
What are the different clients of powercenter?
How to display session logs based upon particular dates. If I want to display session logs for 1 week from a particular date how can I do it without using unix.
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.
What is the difference between unicode & ascii mode data movement in informatica?
what is the flat file partition and where have to specify it
What is the Process to creating lookup transformation in informatica
What are the unsupported repository objects for a mapplet?
can we override a native sql query within informatica? How do we do it?
to improve the performance of aggregator we use sorted input option and use sorter t/r befor aggregator. But here we are increasing one more cache in our mapping i.e; sorter. So how can u convince that you are increasing the performance.?
Differentiate between joiner and lookup transformation?
Design a mapping to get the pervious row salary for the current row. If there is no pervious row exists for the current row, then the pervious row salary should be displayed as null.
Teradata 
