//salesman=the name of the combobox salesman.setModel(model);
/*company is an object of Company classpointing to the right object. and it does contains the
named 'networkx.approximation'import networkx.algorithms.approximation as naaAttributeError: module 'networkx.algorithms.approximation' has no attribute 'traveling_salesman_problem
SELECT a.salesman_name, p.Product_name, Sum(t.quantity) FROM SALES tinner join PRODUCT p on t.Product_id = p.Product_id
GROUP BY a.salesman_name, p.Product_nameHAVING Sum(t.quantity) > 1 但是查询结果应该如