Extracting data SQL to BW
I am new to BW. I know how to extract the data R/3 to BW side.
Here my requirement is to extract the data SQL to BW.
and is there any abap part? because R/3 to BW we have to create one function module in R/3 side. Same like this is there any scenario to extract the data SQL to BW.
Any one please tell me.