what is incremental data aggregation?
- 3 Answers
- 6292 Views
- IBM, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Incremental aggregation means applying only the captured
changes in the source to aggregate calculations in a session.
When the source changes only incrementally and if we can
capture those changes,then we can configure the session to
process only those changes.This allows informatica server to
update target table incrementally,rather than forcing it to
process the entire source and recalculate the same
calculations each time you run the session.By doing this
obviously the session performance increases.
| Is This Answer Correct ? | 7 Yes | 0 No |
Answer / shruthi
When the aggregator transformtaion executes all the output
data will get stored in the temporary location called
aggregator cache. when the next time the mapping runs the
aggreagator transformation runs for the new records loaded
after the first run. These output values will gets
incremented with the values in the aggregator cache. Thia
is called incremental aggregation. By this way we can
improve performance...
Correct me if i was wrong
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / lokesh y g
suppose yesterday 100 got inserted into target,today 50
records inserted and 25 records got updateted ,rather then
pulling all records, using incremental logic we can pull
the data only updated records and inserted records using
setmax variable ........
| Is This Answer Correct ? | 0 Yes | 0 No |
what are the settiings that u use to cofigure the joiner transformation?
What is a command that used to run a batch?
a soure table has 100 records how to load into 3 target tables in a cumulative order source target1 target2 target3 --------- ------------------------------------- 1-100 1 2 3 4 5 6 - - - 98 99 100
Consider a Phone Log table as below. It records all phone numbers that we dial in a given day. SOURCE_PHONE_NUMBER DESTINATION_PHONE_NUMBER CALL_START_DATETIME 1234 4567 01/07/2011 10:00 1234 2345 01/07/2011 11:00 1234 3456 01/07/2011 12:00 1234 3456 01/07/2011 13:00 1234 4567 01/07/2011 15:00 1222 7890 01/07/2011 10:00 1222 7680 01/07/2011 12:00 1222 2345 01/07/2011 13:00 Please provide an SQL query to display the source_phone_number and a flag where the flag needs to be set to Y if first called number and last called number are the same and N if the first called number and last called number are different. Desired Output: Source Number Is_Match 1222 N 1234 Y
without table how to come first record only in oracle?
How to load a relational source into file taget?
how i will stop my workflow after 10 errors
How can u work with remote database in informatica?did you work directly by using remote connections?
suppose we are using dynamic lookup cache and in lookup condition the record is succeeded but in target it is failed due to some reasons then what happened in the cache ?
what is the max/min size allocated for caches.whether index or datacache in any of the transformations like Joiner or Aggregator.bcoz it is set to Auto by default which means we need not to allocate no of bytes or MB.so what is the use of these properties.please let me know about the caches. Thnaks in advance Sai Ram
have u done any performance tuning? how u ll do?
I have data like sno mailid 1 subbu@dell.com 2 arthi@dell.com 3 thiru@dell.com .. ..... like this for N no.of how we will send a message 'meet hr' at a time in windows environment by the informatica..
Teradata 
