What if we sort the data in descending order instead of increasing order in sorter t/f and send the data in aggregator t/f is there any performance downfall?
Please answer below. thank you.
Answers were Sorted based on User's Feedback
Answer / harish
No performance downfall. Example: if your choosing sort order on deptno asc/desc and sal desc.
| Is This Answer Correct ? | 0 Yes | 1 No |
Answer / sai
There is no performance difference while aggregation because Order by always comes after Aggregation.
| Is This Answer Correct ? | 0 Yes | 1 No |
Answer / bharath yadav
after sorting data in sorter tf enable sorted input in aggregator tf for better performance . if the sorted data key in sorter tf and aggregator tf differs then session fails.
| Is This Answer Correct ? | 0 Yes | 1 No |
Answer / me
If you use sorted input and do not sort data correctly, the session fails.
| Is This Answer Correct ? | 0 Yes | 2 No |
What are the modules in Power Center
1.why we need to use unconnected transformation? 2.where we can static chach,dynamic chach
What do you understand by SOA of Informatica?
followin source like region sales 1 100 2 200 i want the output following format region 1 2 sales 100 200
What are the basic needs to join two sources in a source qualifier?
Roles and Responsibilties of Informatica Production Support Member?
case and like function in informtica (my source is XML). case when OS Like'%Windows%' and OS Like '%200%' then 'Windows 200' case when OS Like'%Windows%' and OS Like '%200%'and OS like '%64%' then 'windows 200 64 bit' etc.,,
checkout and checkin in informatica 8.6
What happen if you have 3 ports in SQ and 4 ports in SQL override of SQ( provided all ports are in same order and they are connected with proper source and target)? Also what happens when I have 4 ports and will extract 3 values in SQloverride.. What will be the value in 4th port ?
What is the difference between Normal load and Bulk load?
Describe expression transformation?
Explain joiner transformation in informatica