sql-server - 将 with cte 查询的结果插入临时表

Question

我想将此查询的结果存储到临时表中:

WITH cOldest AS
(
    SELECT 
       *, 
       ROW_NUMBER() OVER (PARTITION BY [MyKey] ORDER BY SomeColumn DESC) AS rnDOB 
    FROM MyTable
)
SELECT
    C.*
 ***    Insert into #MyTempTable *** This part doesn't work  
     FROM
     cOldest C
     WHERE
     C.rnDOB = 1

提前致谢。

Answer 1

假设这适用于SQL Server:CTE 仅适用于一个 语句 - 因此您不能同时拥有SELECT 和INSERT - 只需使用INSERT:

WITH cOldest AS
(
    SELECT 
       *, 
       ROW_NUMBER() OVER (PARTITION BY [MyKey] ORDER BY SomeColumn DESC) AS rnDOB 
    FROM MyTable
)
INSERT INTO #MyTempTable(Col1, Col2, ....., ColN)
  SELECT Col1, Col2, ...., ColN
  FROM cOldest C
  WHERE C.rnDOB = 1

这要求#MyTempTable 已存在。如果您想使用 SELECT 创建它 - 请使用以下语法:

WITH cOldest AS
(
 .....
)
SELECT c.*
INTO #MyTempTable
FROM cOldest c
WHERE C.rnDOB = 1