问题概述 SELECT ROUND(SUM(COALESCE(station_month.maintain_labor_cost,0)+............COALESCE(station_month.employee_compensation,0)),2)AStotalCost, ROUND(SUM(info.ast_original_value),2)AStotalAstValueFROMpowerX.cost_XXXXX_pl_infoinfoINNERJOINpowerX.cost_XXXXX_pl_monthstation_monthONinfo....