I'm trying to get a die, but it doubles when I try to do it. It duplicates if PARC_COD
is the same, but should only bring the sum of the return value column on a line indifferent to what it has next. I just need a column.
Here's an example of how it works:
This is the result within left join
I need to add the value of the return to bring in only one line without duplicates.