SQL SERVER 算出一年中每月的总数量
select y.year,convert(varchar(50), sum(一月))+','+convert(varchar(50), sum(一月1)) as '一月',convert(varchar(50), sum(二月))+','+convert(varchar(50), sum(二月1)) as '二月',convert(varchar(50), sum(三月))+','+convert(varchar(50), sum(三月1)) as '三月',convert(varcha
