tsql - t-sql WITH on WITH

Question

WITHクエリでクエリを作成する必要があります。

; WITH #table1  
(  
SELECT id, x from ... WHERE....  
UNION ALL  
 SELECT id, x from ... WHERE...  
)  

WITH #table2  
(  
 SELECT DISTINCT tbl_x.*,ROW_NUMBER() OVER (order by id) as RowNumber  
WHERE id in ( SELECT id from #table1)  
)  

SELECT * FROM #table2 WHERE RowNumber > ... and ...

したがって、WITH で WITH を使用し、次に 2 番目の WITH で SELECT を使用する必要があります。

Answer 1

WITH各 CTE をコンマで区切ることにより、キーワードの後に​​複数の CTE を定義できます。

WITH T1 AS
(
    SELECT id, x from ... WHERE....
    UNION ALL
    SELECT id, x from ... WHERE...
)
, T2 AS
(
    SELECT DISTINCT tbl_x.*, ROW_NUMBER() OVER (order by id) as RowNumber
    WHERE id in ( SELECT id from T1 )
)
SELECT * FROM T2 WHERE RowNumber > ... and ...

http://www.4guysfromrolla.com/webtech/071906-1.shtml