如何在sql這個例子中獲取節點a和img？

我的代碼：如何在sql這個例子中獲取節點a和img？

Declare @htmlXML xml =' 
<li> 
      <a class="group" onclick="changeimage(http://laptopbatteryone.com/media/catalog/product/cache/1/thumbnail/1200x1200/9df78eab33525d08d6e5fb8d27136e95/l/b/lb-ac48-44-back.jpg)" href="javascript:;" title="" > 
       <img src="http://laptopbatteryone.com/media/catalog/product/cache/1/thumbnail/250x250/9df78eab33525d08d6e5fb8d27136e95/l/b/lb-ac48-44-back.jpg" alt="Acer Aspire 1420P Battery [6 Cells 4400mAh 10.8V]"/> 
      </a> 
     </li> 
     ' 



SELECT n.c.value('@alt','nvarchar(max)') as Brand 
     ,t.v.value('@onclick','nvarchar(max)') as [URL] 
     FROM @htmlXML.nodes('li/a') as t(v) 
     outer apply t.v.nodes('li/a/img') as n(c)

我想這個輸出中的SQL。輸出：

url img in <a onclick : http://laptopbatteryone.com/media/catalog/product/cache/1/thumbnail/1200x1200/9df78eab33525d08d6e5fb8d27136e95/l/b/lb-ac48-44-back.jpg 

alt img in img tag: Acer Aspire 1420P Battery [6 Cells 4400mAh 10.8V]

感謝您的建議我的朋友

來源

2016-09-19 cyrus2500

嗨，你是新來的（順便說一句：歡迎）請允許我一個提示：如果您的問題解決了，那將是非常你好，在（最好）答案的投票櫃檯下面打勾驗收。這將1）標記這個問題已解決2）使追隨者更容易找到最佳的解決方案3）支付點給回答者和4）支付點給你。一旦你自己超過了15分的邊界，你就被要求對貢獻進行投票。這是SO的方式來說聲謝謝。並且請看看你的舊問題。快樂編碼！ – Shnugo

除了一個事實，即HTML不是XML（和我真正開始微笑着從你讀到這樣的問題再次，看here和here）在這種情況下，它可能工作（仍然不會告知）..

Declare @htmlXML xml = 
'<li> 
    <a class="group" onclick="changeimage(http://laptopbatteryone.com/media/catalog/product/cache/1/thumbnail/1200x1200/9df78eab33525d08d6e5fb8d27136e95/l/b/lb-ac48-44-back.jpg)" href="javascript:;" title=""> 
    <img src="http://laptopbatteryone.com/media/catalog/product/cache/1/thumbnail/250x250/9df78eab33525d08d6e5fb8d27136e95/l/b/lb-ac48-44-back.jpg" alt="Acer Aspire 1420P Battery [6 Cells 4400mAh 10.8V]" /> 
    </a> 
</li>';

--The查詢

SELECT a.value('@class','nvarchar(max)') AS a_class 
     ,a.value('@onclick','nvarchar(max)') AS a_onclick 
     ,SUBSTRING(a.value('@onclick','nvarchar(max)'),13,LEN(a.value('@onclick','nvarchar(max)'))-13) AS a_onclick_URL 
     ,a.value('@href','nvarchar(max)') AS a_href 
     ,img.value('@src','nvarchar(max)') as img_src 
     ,img.value('@alt','nvarchar(max)') as img_alt 
     FROM @htmlXML.nodes('li/a') as A(a) 
     outer apply a.nodes('img') as B(img);

結果（按行實際上...）

a_class: group  
a_onclick: changeimage(http://laptopbatteryone.com/media/catalog/product/cache/1/thumbnail/1200x1200/9df78eab33525d08d6e5fb8d27136e95/l/b/lb-ac48-44-back.jpg) 
URL:  http://laptopbatteryone.com/media/catalog/product/cache/1/thumbnail/1200x1200/9df78eab33525d08d6e5fb8d27136e95/l/b/lb-ac48-44-back.jpg 
a_href: javascript:; 
img_src: http://laptopbatteryone.com/media/catalog/product/cache/1/thumbnail/250x250/9df78eab33525d08d6e5fb8d27136e95/l/b/lb-ac48-44-back.jpg 
img_alt: Acer Aspire 1420P Battery [6 Cells 4400mAh 10.8V]

來源

2016-09-19 14:02:18 Shnugo

感謝Shungo，非常好。已解決。 – cyrus2500

如何在sql這個例子中獲取節點a和img？

回答

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