Is there anyway in data services, to specify the mapping of the value should be "added" intead of "overwrite" ?
For Eg
If a record exists in the SQL d/b
Key Value
A 50
Data flows brings another record with same key :
Key Value
A 20
We want to add the Value instead of Overwrite it .
In BW we have a way to specify 'SUM' instead of 'Overwrite' .
Do we have something similar in Data Services ?
