bi report

Hi, I want to develop one report in BI using below DSOs :

Data in 1st DSO

Doc No1     Key1     Amount1

1                 A     12

2                 A     10

3                 B     25

4                 B     7

5                 B     10

Data in 2nd DSO

Doc No2    Key2     Amount2

a               A             10

b               B              11

c               B               1

d               B               2

e               A              6

Final DSO

Doc No1    Key1     Amount1     Doc No2     Key2     Amount2

1               A             12               a               A          10

2               A              10              e               A             6              

3               B               25              b               B              11

4               B               7                c               B               1   

5               B              10               d               B               2

Basically,

they should join basis on 'Key'. I tried infoset, but, it is accumulating the amount value by 'key' field in each row.

Thanks