Need help with sorting of three columns
Hmm I try to describe it a bit better:
column 1:----------- column 2:----------- column 3:
Postoffice1 --------salesman#1 ---------------1
Postoffice1 --------salesman#1 --------------4
Postoffice1 --------salesman#1 --------------1
Postoffice2 --------salesman#1 --------------2
Postoffice3 --------salesman#2 --------------2
Postoffice4 --------salesman#1 --------------3
This is the result I want:
Postoffice1 --------salesman#1 --------------6
Postoffice2 --------salesman#1 --------------2
Postoffice3 --------salesman#2 --------------2
Postoffice4 --------salesman#1 --------------3
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