sql data row to column

select CodeName FROM CodeDictionary where CodeCategory_ID=138
结果：

 

开始转换：
DECLARE @sql VARCHAR(8000)
    SELECT @sql=isnull(@sql+',','')+CodeName FROM CodeDictionary where CodeCategory_ID=138 GROUP BY CodeName           
    SET @sql='select * from (select ch.HousebillID,ch.Chargeamount,cd.CodeCategory_ID,cd.CodeName 
        from Housebill hb left join Chargebill ch on hb.ID=ch.HousebillID left join CodeDictionary cd
        on ch.Chargeitem=cd.ID where cd.CodeCategory_ID=138) tb pivot (max(tb.Chargeamount) for tb.CodeName in ('+@sql+'))a'
   exec(@sql)

 

结果就类似这样的语句：
select * from (
        select ch.HousebillID,ch.Chargeamount,cd.CodeCategory_ID,cd.CodeName 
        from Housebill hb left join Chargebill ch on hb.ID=ch.HousebillID left join CodeDictionary cd on ch.Chargeitem=cd.ID where cd.CodeCategory_ID=138
    )
    tb pivot ( sum (tb.Chargeamount) 
     for tb.CodeName in (cleaning fee, material fee, electricity fee, service fee, broadband, other, gas fee, water fee, maintenance fee, sanitation, property fee, deposit, discount, cable TV ,rent)
)a
where CodeCategory_ID=138