动态 SQL Server 数据透视表 [英] Dynamic SQL Server Pivot Table
问题描述
我找到了一个很好的脚本,它可以通过列名为我的数据透视表动态创建,但我没有将分配的值返回到表中.这是我的起始表.
I found a nice script that dynamically creates by column names for my pivot table, but I am not getting the assigned values back into the table. Here is my starting table.
ORDER_ID DSC_NAME NAME
----------- --------------- -----------
2 34-1500-XXX DWG_DOC
3 C0403 EQIP_1
4 C4054 EQIP_2
1 34-1500-013 PART
0 88-0000 PRCS
我运行此 SQL 以在我的数据透视表中生成我想要的列
I run this SQL to generate my columns that I want in my pivot table
DECLARE @cols AS NVARCHAR(MAX), @query AS NVARCHAR(MAX);
select @cols = STUFF((SELECT distinct
',' + QUOTENAME(NAME)
FROM test
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
这给了我以下输出
[DWG_DOC],[EQIP_1],[EQIP_2],[PART],[PRCS]
当我为数据透视表运行动态 SQL 时
When I run the dynamic SQL for the Pivot Table
SET @query = 'SELECT ' + @cols + ' from
(
SELECT ORDER_ID,DSC_NAME
FROM test
) x
pivot
(
MIN(ORDER_ID)
for DSC_NAME in (' + @cols + ')
) p '
execute(@query)
我看到了这个结果...
I see this result...
DWG_DOC EQIP_1 EQIP_2 PART PRCS
----------- ----------- ----------- ----------- -----------
NULL NULL NULL NULL NULL
我尝试了几种不同的选项,但我没有想出解决方案来解决为什么这不起作用.
I have tried several different options, but I not come up with a solution to why this is not working.
所需的输出将是 ORDER_ID 的列顺序正确的位置
Desired Output would be where the column order is correct by the ORDER_ID
PRCS PART DWG_DOC EQIP_1 EQIP_2
---------- -------------- -------------- --------- ---------
88-0000 34-1500-013 34-1500-XXX C0403 C4054
但这也适用于我的应用程序.
But this would also work my application as well.
DWG_DOC EQIP_1 EQIP_2 PART PRCS
-------------- --------- --------- -------------- -----------
34-1500-XXX C0403 C4054 34-1500-013 88-0000
推荐答案
从选择中移除ORDER_ID
,并选择列name
:
Remove the ORDER_ID
from the selection, and select the column name
:
SET @query = 'SELECT ' + @cols + ' from
(
SELECT ORDER_ID, DSC_NAME -- <--- you didn't select the name here
FROM test
) x
pivot
(
MIN(ORDER_ID)
for DSC_NAME in (' + @cols + ')
) p '
并使用 MAX(DSC_Name)
代替 MIN(ORDER_ID)
.像这样:
And use MAX(DSC_Name)
instead of MIN(ORDER_ID)
. Like this:
SET @query = 'SELECT '+ @cols + ' from
(
SELECT DSC_NAME, Name
FROM test
) x
pivot
(
MAX(DSC_Name)
for NAME in (' + @cols + ')
) p ';
SQL Fiddle 演示
这会给你:
SQL Fiddle Demo
This will give you:
| DWG_DOC | EQIP_1 | EQIP_2 | PART | PRCS |
---------------------------------------------------------
| 34-1500-XXX | C0403 | C4054 | 34-1500-013 | 88-0000 |
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