Sql server SQL Server中透视表中动态列的总和
我有一个动态透视查询,其中列是动态生成的 我的桌子:考勤表 包含:ID、螺柱ID、收件人日期、当前 其中存储的数据如下:Sql server SQL Server中透视表中动态列的总和,sql-server,pivot,powerpivot,pivotviewer,activepivot,Sql Server,Pivot,Powerpivot,Pivotviewer,Activepivot,我有一个动态透视查询,其中列是动态生成的 我的桌子:考勤表 包含:ID、螺柱ID、收件人日期、当前 其中存储的数据如下: ID Stud_id ATT_DATE PRESENT 1 1 2015-08-1 1 2 2 2015-08-1 0 3 3 2015-08-1 1 4 1 2015-08-2 0 5 2 2015-08-2 1 6 3 2015-08-2
ID Stud_id ATT_DATE PRESENT
1 1 2015-08-1 1
2 2 2015-08-1 0
3 3 2015-08-1 1
4 1 2015-08-2 0
5 2 2015-08-2 1
6 3 2015-08-2 1
我已经创建了PIVOT查询
DECLARE @columns NVARCHAR(MAX), @sql NVARCHAR(MAX);
SET @columns = N'';
SELECT @columns += N', p.' + QUOTENAME(ATT_DATE)
FROM (SELECT p.ATT_DATE FROM dbo.ATTENDANCE_MASTER AS p
GROUP BY p.ATT_DATE) AS x;
SET @sql = N'SELECT Stud_id, ' + STUFF(@columns, 1, 2, '') + '
FROM
(
SELECT p.ATT_DATE, p.Stud_id, p.PRESENT FROM dbo.ATTENDANCE_MASTER AS p
) AS j
PIVOT
(
SUM(PRESENT) FOR ATT_DATE IN ('+ STUFF(REPLACE(@columns, ', p.[', ',['), 1, 1, '') + ')
) AS p;';
PRINT @sql;
EXEC sp_executesql @sql;
我需要像这样的列的总和
Stud_ID 2015-08-01 2015-08-2 2015-08-3 Total
1 1 0 1 2
2 1 1 1 3
3 1 1 0 2
4 0 0 1 1
请给我建议解决办法
提前感谢。您可以使用多维数据集添加
分组,以获得以下总计:
DECLARE @columns NVARCHAR(MAX), @sql NVARCHAR(MAX);
SET @columns = N'';
SELECT @columns += N', p.' + QUOTENAME(ATT_DATE)
FROM (SELECT p.ATT_DATE FROM dbo.ATTENDANCE_MASTER AS p
GROUP BY p.ATT_DATE) AS x;
SET @sql = N'SELECT Stud_id, ' + STUFF(@columns, 1, 2, '') + '
FROM
(
SELECT p.ATT_DATE, p.Stud_id, p.PRESENT
FROM dbo.ATTENDANCE_MASTER AS p
GROUP BY p.ATT_DATE, p.Stud_id, p.PRESENT
WITH CUBE
) AS j
PIVOT
(
SUM(PRESENT) FOR ATT_DATE IN ('+ STUFF(REPLACE(@columns, ', p.[', ',['), 1, 1, '') + ')
) AS p;';
PRINT @sql;
EXEC sp_executesql @sql;
首先,我建议不要使用变量连接来创建列列表。而是使用SQL Server的XML扩展:
SET @Columns = (SELECT N', p.' + QUOTENAME(p.Att_Date)
FROM dbo.ATTENDANCE_MASTER AS p
GROUP BY p.ATT_DATE
ORDER BY p.ATT_DATE
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)');
然后,您可以简单地使用@Columns
为总计创建一个表达式,因此使用:
', Total = ' + STUFF(REPLACE(@columns, ', p.[', ' + p.['), 1, 3, '')
你会得到这样的结果:
, Total = p.[2015-08-01] + p.[2015-08-02]
您可以将其添加到动态SQL中,因此对于完整的工作示例:
IF OBJECT_ID(N'tempdb..#T', 'U') IS NOT NULL DROP TABLE #T;
CREATE TABLE #T ([ID] int, [Stud_id] int, [ATT_DATE] datetime, [PRESENT] int);
INSERT INTO #T ([ID], [Stud_id], [ATT_DATE], [PRESENT])
VALUES
(1, 1, '2015-08-01 00:00:00', 1),
(2, 2, '2015-08-01 00:00:00', 0),
(3, 3, '2015-08-01 00:00:00', 1),
(4, 1, '2015-08-02 00:00:00', 0),
(5, 2, '2015-08-02 00:00:00', 1),
(6, 3, '2015-08-02 00:00:00', 1);
DECLARE @columns NVARCHAR(MAX), @sql NVARCHAR(MAX);
SET @Columns = (SELECT N', p.' + QUOTENAME(REPLACE(CONVERT(VARCHAR(10), p.Att_Date, 111), '/', '-'))
FROM #T AS p
GROUP BY p.ATT_DATE
ORDER BY p.ATT_DATE
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)');
SET @sql = N'SELECT Stud_id, ' + STUFF(@columns, 1, 2, '') + ', Total = ' + STUFF(REPLACE(@columns, ', p.[', ' + p.['), 1, 3, '') + '
FROM
(
SELECT p.ATT_DATE, p.Stud_id, p.PRESENT FROM #T AS p
) AS j
PIVOT
(
SUM(PRESENT) FOR ATT_DATE IN ('+ STUFF(REPLACE(@columns, ', p.[', ',['), 1, 1, '') + ')
) AS p;';
PRINT @sql;
EXEC sp_executesql @sql;
我知道如何对静态列求和,但我不知道如何对动态列求和您现在有什么输出?这里什么是动态的?日期列的数量?现在除了Total ColumnYes,我有上面的输出,date的列名是动态的@bmsqldevI。我还有一个查询,我如何在这里使用两个聚合函数,如Sum和Count。