将 Total 列添加到 Dynamic SQL pivot

Posted 2023-05-08

【中文标题】将 Total 列添加到 Dynamic SQL pivot

【英文标题】：Add Total column to Dynamic SQL pivot

【发布时间】：2021-01-29 19:31:05

【问题描述】：

那里有很多这类问题，但找不到与我正在寻找的内容相匹配的任何内容。

我正在使用另一篇文章中运行良好的代码，但我想对其进行修改以在表格底部添加一个总计行。

上一篇让创作者获得荣誉的帖子是：SQL Server dynamic pivot with multiple columns

我当前的表格如下所示：

Work_Group	Avg	01/01/2021	01/01/2021	01/01/2021	ect...
Blue	5	2	5	8
Green	5	2	5	8

目标：

Work_Group	Avg	01/01/2021	01/01/2021	01/01/2021	ect...
Blue	5	2	5	8
Green	5	2	5	8
TOTAL	10	4	10	16

当前代码是：

DECLARE @colsEAST AS NVARCHAR(MAX);
DECLARE @pivotCountEAST AS NVARCHAR(MAX);
DECLARE @sqlEAST AS NVARCHAR(MAX);

SELECT @colsEAST = ISNULL(@colsEAST + ', ', '') + QUOTENAME(Load_Date)
FROM (SELECT DISTINCT Load_Date FROM ##CE_tmpEast_ALL) AS Load_Date

SET @pivotCountEAST = N'SELECT Work_Group, ' + @colsEAST +'
FROM (SELECT Work_Group, Load_Date, Count FROM ##CEtmp_East_ALL) AS Count
PIVOT(SUM(Count) FOR Load_Date IN (' + @colsEAST + ')) AS pvt';

SET @sqlEAST = '; WITH MTD_CountPivot AS (
'+@pivotCountEAST+'
),

MTD_Pivot_Tables AS (
  SELECT Work_Group, AVG(Count) AS [AVG Count]
  FROM ##CEtmp_East_ALL
  GROUP BY Work_Group
)
SELECT MTD_CountPivot.Work_Group,  MTD_Pivot_Tables.[AVG Count], ' + @colsEAST + '
FROM
MTD_CountPivot

INNER JOIN MTD_Pivot_Tables ON MTD_CountPivot.Work_Group = MTD_Pivot_Tables.Work_Group';

EXEC sp_executesql @sqlEAST;

任何帮助将不胜感激！！！

谢谢

【问题讨论】：

在输入表中添加一个并集？与分组（在一个虚拟列上）+总和

【参考方案1】：

您可以将GROUPING SETS ((mcp.Work_Group),()) 添加到当前查询以获取小计。为此，需要创建另一个参数@colsEAST2，以便将生成的列标题日期列表保存为

SUM([2001-01-01]) AS [2001-01-01],SUM([2001-01-02]) AS [2001-01-02],SUM([2001-01-03]) AS [2001-01-03]

与 @colsEAST 一起持有

[2001-01-01],[2001-01-02],[2001-01-03]

DECLARE @colsEAST       AS NVARCHAR(MAX);
DECLARE @colsEAST2      AS NVARCHAR(MAX);
DECLARE @pivotCountEAST AS NVARCHAR(MAX);
DECLARE @sqlEAST        AS NVARCHAR(MAX);

SELECT @colsEAST = ISNULL(@colsEAST + ', ', '') + QUOTENAME(Load_Date)
  FROM (SELECT DISTINCT Load_Date 
          FROM ##CE_tmpEast_ALL) AS Load_Date;    
SELECT @colsEAST2 = ISNULL(@colsEAST2 + ', ', '') 
                + ' SUM('+QUOTENAME(Load_Date)+') AS '+QUOTENAME(Load_Date)
  FROM (SELECT DISTINCT Load_Date 
          FROM ##CE_tmpEast_ALL) AS Load_Date;    
SET @pivotCountEAST = N'SELECT Work_Group, ' + @colsEAST2 +'
                          FROM (SELECT Work_Group, Load_Date, Count 
                                  FROM ##CE_tmpEast_ALL) AS Count
                         PIVOT(SUM(Count) FOR Load_Date IN (' + @colsEAST + ')) AS pvt
                         GROUP BY Work_Group';                             
SET @sqlEAST = '; WITH MTD_CountPivot AS (
'+@pivotCountEAST+'
), MTD_Pivot_Tables AS (
  SELECT Work_Group, AVG(Count) AS [AVG Count]
    FROM ##CE_tmpEast_ALL
   GROUP BY Work_Group
)
SELECT CASE WHEN GROUPING(mcp.Work_Group) = 0 
            THEN mcp.Work_Group 
            ELSE ''TOTAL'' 
             END AS Work_Group,
       SUM(mpt.[AVG Count]) AS Avg, 
       ' + @colsEAST2+ '
  FROM MTD_CountPivot mcp
  JOIN MTD_Pivot_Tables mpt 
    ON mcp.Work_Group = mpt.Work_Group
 GROUP BY GROUPING SETS ((mcp.Work_Group),())';    
EXEC sp_executesql @sqlEAST;

Demo