如何将 SQL 输出固定为两位小数

Question

我有这个SELECT声明：

  SELECT
     t.clmUnit,
     t.clmConType,
     Count(t.clmCaseID) TotalCases,
     SUM(CASE WHEN t.clmOutcomeType='Resolved' THEN 1 ELSE 0 END) TotalResolved,
     cast(SUM(CASE WHEN t.clmOutcomeType='Resolved' THEN 1 ELSE 0 END) as decimal(18,2))/cast(Count(t.clmCaseID) as decimal(18,2))*100 as [TotalResolved %],
    SUM(CASE WHEN t.clmOutcomeType='Unresolved' THEN 1 ELSE 0 END) TotalCaseProgressed,
    cast(SUM(CASE WHEN t.clmOutcomeType='Unresolved' THEN 1 ELSE 0 END) as decimal(18,2))/cast(Count(t.clmCaseID)as decimal(18,2))*100 as [TotalCaseProgressed %],
    SUM(CASE WHEN t.clmOutcomeType='Work In Progress' THEN 1 ELSE 0 END) TotalFurtherConReq,
    cast(SUM(CASE WHEN t.clmOutcomeType='Work In Progress' THEN 1 ELSE 0 END) as decimal(18,2))/cast(Count(t.clmCaseID)as decimal(18,2))*100 as [TotalFurtherConReq %]

将输出列显示为十进制数字（例如）62.24837411，我知道我可以将其放入 excel 并将该列格式化为百分比，但我的问题是如何获得 SQL 将其转换为百分比？我尝试将 as decimal(18,2) 更改为 as decimal (4,2) 这是我想要的，但它只是抛出数学溢出错误？

Answer 1

试试这个：

select  convert(DECIMAL(10,2),column)

精确到小数点后两位

Answer 2

你把 cast 放错地方了

cast(SUM(CASE WHEN t.clmOutcomeType='Resolved' THEN 1 ELSE 0 END) as decimal(18,2))/cast(Count(t.clmCaseID) as decimal(18,2))*100 as [TotalResolved %],

为整个结果放置 CAST，如下所示：

cast(SUM(CASE WHEN t.clmOutcomeType='Resolved' THEN 1 ELSE 0 END)/cast(Count(t.clmCaseID) as decimal(18,2))*100  as decimal(18,2)) as [TotalResolved %],

Answer 3

AS Arul 建议，您需要对整列计算使用强制转换函数。

  SELECT
 t.clmUnit,
 t.clmConType,
 Count(t.clmCaseID) TotalCases,
 SUM(CASE WHEN t.clmOutcomeType='Resolved' THEN 1 ELSE 0 END) TotalResolved,
 cast(SUM(CASE WHEN t.clmOutcomeType='Resolved' THEN 1 ELSE 0 END))/Count(t.clmCaseID) * 100  as decimal(18,2)) as [TotalResolved %],
SUM(CASE WHEN t.clmOutcomeType='Unresolved' THEN 1 ELSE 0 END) TotalCaseProgressed,
cast(SUM(CASE WHEN t.clmOutcomeType='Unresolved' THEN 1 ELSE 0 END))/Count(t.clmCaseID) * 100 as decimal(18,2)) as [TotalCaseProgressed %],
SUM(CASE WHEN t.clmOutcomeType='Work In Progress' THEN 1 ELSE 0 END) TotalFurtherConReq,
cast(SUM(CASE WHEN t.clmOutcomeType='Work In Progress' THEN 1 ELSE 0 END))/Count(t.clmCaseID) * 100 as decimal(18,2)) as [TotalFurtherConReq %]

如何将 SQL 输出固定为两位小数

How to fix SQL output into two decimal places

sql

sql-server

decimal