如何获取最多2位小数的值？

Question

我有以下疑问。

insert into tbl_percount([H1Cycle],[perOffshore],[perOnsite],[perTotal])
(select [H1Cycle],Round(cast([Offshore]*100.0/(select [Offshore] from tbl_FinalLastday where [H1Cycle]='H1 Total')as float),2) as 'perOffshore',
Round(cast([Onsite]*100.0/(select [Onsite] from tbl_FinalLastday where [H1Cycle]='H1 Total')as float),2) as 'perOnsite',
Round(cast([Total]*100.0/(select [Total] from tbl_FinalLastday where [H1Cycle]='H1 Total')as float),2) as 'perTotal'
 from tbl_FinalLastday where [H1Cycle]!='H1 Total')

 insert into tbl_percount([H1Cycle],[perOffshore],[perOnsite],[perTotal])
(select [H1Cycle],Round(cast([Offshore]*100/(select [Total]  from tbl_FinalLastday where [H1Cycle]='H1 Total')as float),2) as 'perOffshore',
Round(cast([Onsite]*100.0/(select [Total] from tbl_FinalLastday where [H1Cycle]='H1 Total')as float),2) as 'perOnsite',
Round(cast([Total]*100.0/(select [Total] from tbl_FinalLastday where [H1Cycle]='H1 Total')as float),2) as 'perTotal'
 from tbl_FinalLastday where [H1Cycle]='H1 Total')

我想将输出插入表格＆＃39; tbl_percount＆＃39;。在第一种情况下，它给我正确的输出（前4行）。但在第二种情况下（最后一行），插入查询，通过舍入小数值给出整数值。

我希望输出为71.00,29.00,100.00

我怎么能得到这个？

Answer 1

您需要cast作为numeric(3,2)，而不是float。 尝试以下方法：

select cast(round([Offshore] * 100 / (
                SELECT [Total]
                FROM tbl_FinalLastday
                WHERE [H1Cycle] = 'H1 Total'
                ), 2) AS NUMERIC(3, 2)) AS 'perOffshore'