在SQL Server中对varchar值中的数字进行排序

Question

我的目标是在每日每月的表格中显示销售数据，总计和其他平均值计算在底部，

我有一个数据结果集，其中一列名为'Day'，对应于该月的日期，自动数据类型为int。

select datepart(day, a.date ) as 'Day'

在我的第二个结果集上，是在底部加载和，发生单词'Sum'与Day的列对齐，我使用Union All将结果集合并在一起，预期结果集就像这样

day  sales
1      10
2      20
3      30
4      10
5      20
6      30
.
.
.
31     10
Sum   130

我所做的是将最初在int中的day值转换为varchar数据类型。这是为了成功加入列而它确实如此，新的冲突是数字的排序

select * from #SalesDetailed
UNION ALL
select * from #SalesSum
order by location, day

Answer 1

试试这个

select Day, Sum(Col) as Sales 
from #SalesDetailed
Group by Day With Rollup

修改（工作样本）：

select 
CASE WHEN Day IS NULL THEN 'SUM' ELSE STR(Day)  END  as Days, 
Sum(Sales)  from 
( 

Select 1 as Day , 10 as Sales UNION ALL
Select 2 as Day , 20 as Sales

) A 
Group by Day With Rollup

编辑2：

select CASE WHEN Day IS NULL THEN 'SUM' ELSE STR(Day)  END  as Days,
       Sum(Sales) as Sales 
from #SalesDetailed
Group by Day With Rollup

Answer 2

假设您的联合查询返回正确的结果，只是弄乱了订单，您可以在order by子句中使用case和isnumeric来操纵您的排序：

SELECT *
FROM
(
    SELECT *
    FROM #SalesDetailed
    UNION ALL
    SELECT *
    FROM #SalesSum
) u
ORDER BY location, 
         ISNUMERIC(day) DESC, 
         CASE WHEN ISNUMERIC(day) = 1 THEN cast(day as int) end

如果day是数字，isnumeric将返回1，而当数字不是时，Private Function GetPetTypes() As String Const SUBFORM_NAME As String = "Pets_Infomation" Const PET_TYPEFIELD As String = "PetType" Dim strPetList As String With Me(SUBFORM_NAME).Form.RecordsetClone If .RecordCount > 0 Then ' Start with first record .MoveFirst Do While Not .EOF If strPetList <> "" Then strPetList = strPetList & "," End If strPetList = strPetList & .Fields(PET_TYPEFIELD) .MoveNext Loop ' Go Back to first record in case it needs to be reused .MoveFirst End If End With GetPetTypes = strPetList End Function 将返回0。