In a simple mapping when i use aggregate t/r with out any
condition or group by, i am getting output as only last
record in the table . can any one explain it please.........?

Answers were Sorted based on User's Feedback



In a simple mapping when i use aggregate t/r with out any condition or group by, i am getting outp..

Answer / srinivas.medagum

When the records come from SQ each record from first one
checks for the group by port but till last record it doesnot
found .So by default as the last record considered as only
record it stores in Agg T/R.

Is This Answer Correct ?    3 Yes 1 No

In a simple mapping when i use aggregate t/r with out any condition or group by, i am getting outp..

Answer / ankit kansal

By Default informtica finds a group on the basis of your group by check boxes and returns you last row of each group when you don't specify any group by clause then it takes whole data set as a single group and returns you the last row of that whole group...

please make me correct if i am wrong..

http://deepinopensource.blogspot.in

Is This Answer Correct ?    1 Yes 0 No

In a simple mapping when i use aggregate t/r with out any condition or group by, i am getting outp..

Answer / naresh_infa96

If you're using Aggregator Trasnformation without using group by on any port then the aggreagtor TXNs consider whole table as one group and gives the last row as output.

Why last row as Output : by default aggregator uses MAX() function

Is This Answer Correct ?    0 Yes 0 No

In a simple mapping when i use aggregate t/r with out any condition or group by, i am getting outp..

Answer / pooja

few options:
1. did you place any other trans before Agg t/r
2. check how many rows are comming form source.
3. run the debuger for more info

Is This Answer Correct ?    0 Yes 1 No

Post New Answer

More Informatica Interview Questions

what is metadata?

8 Answers   Satyam,


WHAT IS THE NAME OF THAT PORT IN DYNAMIC CACHE WHICH IS USED FOR INSERT , UPDATE OPRATION ?

4 Answers   Oracle,


Is it passive or active when check and uncheck the box of DISTINCT in Sorter transformation? why?

6 Answers   iFlex, Morgan Stanley,


We can achieve better perfomance using sorter before an aggragator. Then what is the significance of 'Sorted Input' check in aggregator ?? Please let me know the difference ??

2 Answers  


How do schedule a workflow in Informatica thrice in a day? Like run the workflow at 3am, 5am and 4pm?

3 Answers   Logica CMG,


Which will beter perform IIf or decode?

3 Answers   TCS,


How to join three sources using joiner?

1 Answers  


Please explain in detail with example about 1.Confirmed Dimension. 2.Junk Dimension. 3.Degenerated Dimension. 4.Slowly changing Dimensions

4 Answers   IBM, Infotech,


What are the reusable transforamtions?

2 Answers  


Source --------- eno , ename, sal 001,ank,1000 002,behe,2000 003,raj,2500 Target ------- header :DDMMYYYY24MMSS timestamp body: 001,ank,1000 002,behe,2000 003,raj,2500 footer: count(eno),sum(sal) how to implement the same in a FF tgt?

2 Answers   CTS,


What will happen if the select list columns in the custom override sql query and the output ports order in sq transformation do not match?

1 Answers  


What are the different versions of informatica?

1 Answers  


Categories