在mssql 2008中显示列末尾的列总和

Question

在MsSQL 2008中，我试图在最后显示3个不同列的总和。

目前我的查询返回

选择（@grouping = maingroup，subgroup，subsubgroup，season，vendorid，[01] as'01'，[02] as'02'，Total）

set @sql = 'select '+@grouping+' from ##aa'
execute sp_executesql @sql

我需要在各自列的末尾加上01,02和Total的总和。我曾尝试使用汇总，但这并没有给我正确的结果。可能只是做错了，但是选择语句必须看起来像我需要什么？

Answer 1

有两种方法可以做到这一点。第一个是旧的pre sql-server-2008方法，这样做是使用UNION ALL，第一个SELECT返回表中的原始数据，第二个返回SUMS的01,02和总字段：

SELECT   maingroup,
         subgroup,
         subsubgroup,
         season,
         vendorid,
         [01] AS '01',
         [02] AS '02',
         Total AS Total
FROM     #aa
UNION ALL
SELECT   null as maingroup,
         null as subgroup,
         null as subsubgroup,
         null as season,
         null as vendorid,
         sum([01]) AS '01',
         sum([02]) AS '02',
         sum(Total) AS Total
FROM     #aa

在sql-server-2008及更高版本中，您可以使用GROUPING SETS代替此操作。使用GROUPING SETS对上述问题进行的等效查询是：

SELECT   maingroup,
         subgroup,
         subsubgroup,
         season,
         vendorid,
         sum([01]) AS '01',
         sum([02]) AS '02',
         sum(Total) AS Total
FROM     #aa
GROUP BY GROUPING SETS((maingroup, subgroup, subsubgroup, season, vendorid), ())

两者都应该返回：

GROUPING SETS Equivalents和Using GROUP BY with ROLLUP, CUBE, and GROUPING SETS是另外两个来源，提供有关使用GROUPING SETS

的详细信息

Answer 2

Select maingroup, subgroup, subsubgroup, season, vendorid, sum([01]) as '01', sum([02]) as '02', sum(Total)
FROM ##aa
Group by grouping sets ((maingroup, subgroup, subsubgroup, season, vendorid),())

最后一个条目将是除01,202和total之外的所有列中的NULL行。