SQL 中没有总计的 ORDER BY

Question

我有这个 SQL 查询，它使用 ROLLUP 来获取总数，但还需要按金额对每隔一行进行排序：

SELECT 
    ISNULL([SharepointId], 'Total') as 'Sharepoint', 
    Count([Id]) as 'Nombre de tickets' 
FROM [dbo].[Tickets]
GROUP BY ROLLUP([SharepointId])
ORDER BY 2 DESC, 1

有没有办法确保总计位于结果的末尾，同时保持其他行的降序？

现在，这是我得到的：

Sharepoint         Nombre de tickets
------------------ -----------------
Total              20326
INTERNE            9396
MAIN               1503
...

Answer 1

修改 Order By 子句如下：

CASE WHEN  ISNULL([SharepointId], 'Total') <>'Total' THEN  
Count([Id])END DESC, 1

Answer 2

试试这个

SELECT 
    ISNULL([SharepointId], 'Total') as [Sharepoint], 
    Count([Id]) as [Nombre de tickets]
FROM [dbo].[Tickets]
GROUP BY ROLLUP([SharepointId])
ORDER BY CASE WHEN [SharepointId] IS NULL THEN 'B' ELSE 'A' END, [Nombre de tickets] DESC

Answer 3

简单使用case表达式：

order by (case when SharepointId is null then 1 else 0 end), [Nombre de tickets] desc;

Answer 4

其他答案错误地表达了您想要的内容。

您不希望最后一行因为它是 NULL
您希望最后一行是因为它已被分组

SQL 服务器有一个功能，文档页面几乎完全包含您的示例...

https://docs.microsoft.com/en-us/sql/t-sql/functions/grouping-transact-sql?view=sql-server-2017

SELECT 
    ISNULL([SharepointId], 'Total') as 'Sharepoint', 
    Count([Id]) as 'Nombre de tickets' 
FROM [dbo].[Tickets]
GROUP BY ROLLUP([SharepointId])
ORDER BY GROUPING([SharepointId]), 2 DESC

GROUPING([SharepointId]) 是 0 当列未分组时 （因此这些行首先排序） 并且然后它是 1，当列被分组时 （因此该行排在最后）。这在汇总多列时特别有用。

SQL 中没有总计的 ORDER BY

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