如何从SQL中的动态数据透视表创建固定的表格？

Question

我想从下面的动态透视的结果创建一个新表。查询本身工作正常。

DECLARE @columns NVARCHAR(MAX), @sql NVARCHAR(MAX); 
SET @columns = N''; 
SELECT @columns += N', p.' + QUOTENAME(COMMON_NAME) 
FROM (SELECT p.COMMON_NAME FROM eBird AS p 
GROUP BY p.COMMON_NAME) AS x; 
SET @sql = N' 
SELECT SAMP_EVENT_ID, ' + STUFF(@columns, 1, 2, '') + ' 
FROM 
(SELECT SAMP_EVENT_ID, COMMON_NAME, SUM(IIF(OBS_COUNT IS NULL, 0, 1)) AS  
Pres 
FROM eBird GROUP BY SAMP_EVENT_ID, COMMON_NAME) AS j 
PIVOT 
(SUM(Pres) FOR COMMON_NAME IN (' 
+ STUFF(REPLACE(@columns, ', p.[', ',['), 1, 1, '') + ')) AS p;'; 
PRINT @sql; 
EXEC sp_executesql @sql; 

我已经试过了典型
SELECT * INTO newtable的FROM（子查询） 但没有奏效。我收到错误“Msg 156，Level 15，State 1，Line 416 关键字'DECLARE'附近语法不正确。Msg 102，Level 15，State 1，Line 432''''附近的语法不正确。

我也尝试修改此部分，如下所示： SELECT @columns + = N'，p。' + QUOTENAME（COMMON_NAME） INTO sp_pivot FROM（SELECT p.COMMON_NAME FROM eBird AS p GROUP BY p.COMMON_NAME）AS x;

但是，我得到这个错误：
消息194，级别15，状态1，行419 SELECT INTO语句不能包含赋值给变量的SELECT语句。

我花了相当多的时间试图通过查看以前的问题来解决这个问题，并希望得到任何帮助。谢谢。

Answer 1

在MS SQL 2014年

DECLARE @columns NVARCHAR(MAX), @sql NVARCHAR(MAX); 
SET @columns = N''; 
SELECT @columns += N', p.' + QUOTENAME(COMMON_NAME) 
FROM (SELECT p.COMMON_NAME FROM eBird AS p 
GROUP BY p.COMMON_NAME) AS x; 
SET @sql = N' 
SELECT SAMP_EVENT_ID, ' + STUFF(@columns, 1, 2, '') + ' into NewTable 
FROM 
(SELECT SAMP_EVENT_ID, COMMON_NAME, SUM(IIF(OBS_COUNT IS NULL, 0, 1)) AS  
Pres 
FROM eBird GROUP BY SAMP_EVENT_ID, COMMON_NAME) AS j 
PIVOT 
(SUM(Pres) FOR COMMON_NAME IN (' 
+ STUFF(REPLACE(@columns, ', p.[', ',['), 1, 1, '') + ')) AS p;'; 
PRINT @sql; 
EXEC sp_executesql @sql; 

版本从2008 R2的以下作品的作品：

DECLARE @columns NVARCHAR(MAX), @sql NVARCHAR(MAX); 
SET @columns = N''; 
SELECT @columns += N', p.' + QUOTENAME(COMMON_NAME) 
FROM (SELECT p.COMMON_NAME FROM eBird AS p 
GROUP BY p.COMMON_NAME) AS x; 
SET @sql = N' 
SELECT SAMP_EVENT_ID, ' + STUFF(@columns, 1, 2, '') + ' into NewTable2 
FROM 
(SELECT SAMP_EVENT_ID, COMMON_NAME, SUM(case when OBS_COUNT is null then 0 else 1 end) AS  
Pres 
FROM eBird GROUP BY SAMP_EVENT_ID, COMMON_NAME) AS j 
PIVOT 
(SUM(Pres) FOR COMMON_NAME IN (' 
+ STUFF(REPLACE(@columns, ', p.[', ',['), 1, 1, '') + ')) AS p;'; 
PRINT @sql; 
EXEC sp_executesql @sql;