Bagaimana saya bisa menggunakan pernyataan if setelah CTE (SQL Server 2005)

Ekspresi tabel umum didefinisikan dalam konteks satu pernyataan:

WITH cte_name AS (
  <cte definition>)
<statement that uses cte>;

Jadi, Anda dapat melakukan sesuatu seperti:

WITH CTE
AS
( 
    SELECT * FROM SOMETABLE
)
SELECT * FROM CTE;

atau

WITH CTE
AS
( 
    SELECT * FROM SOMETABLE
)
UPDATE CTE 
SET somefield = somevalue
WHERE id = somekey;