SQL Server-獲取XML屬性的最后一次出現

Question

我在表中有以下數據

我正在嘗試編寫一個查詢，該查詢將返回包含給定ID的最后一次出現的行。 例如：-在上面的示例中，它將返回兩行（ID＃282和ID＃266）

我將如何寫這篇文章？

Answer 1

WITH T1
     AS (SELECT *,
                XML.value(( '(//Customer/@ID)[1]' ), 'int') AS CustomerID
         FROM   YourTable),
     T2
     AS (SELECT *,
                ROW_NUMBER() OVER (PARTITION BY CustomerID ORDER BY Id DESC) AS RN
         FROM   T1)
SELECT Id,
       CustomerID,
       XML
FROM   T2
WHERE  RN = 1