Inserting the result of a with cte query into a Temp Table

Question

I want to store the result of this query into a temp table:

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

Thanks in advance.

Answer 1

Assuming this is for SQL Server : the CTE is good for only one statement - so you cannot have both a SELECT and an INSERT - just use the 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

This requires that the #MyTempTable already exists. If you want to create it with the SELECT - use this syntax:

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