Question

DECLARE @tProduct TABLE (
  [pProductId] [smallint] IDENTITY(1,1) PRIMARY KEY NOT NULl,
  [ProductDetails] [xml] NOT NULL
)

  INSERT @tProduct 
    ( [ProductDetails] ) 
  VALUES 
    ( N'<product>
         <placeholder name="ProductHeader"><control name="pdRequiredMainHeading"><text position="placeholder1">Blah blah</text></control></placeholder>
         <placeholder name="LeftColumn">
           <control name="pdRequiredSubHeading"><text position="placeholder1">Blah blah</text><text position="placeholder2">Blah blah</text></control>
           <control name="pdRequiredParagraph"><text position="placeholder1">Blah blah</text></control>
           <control name="pdOverlinedUnderlinedHeading"><text position="placeholder1">Blah blah</text></control>
           <control name="pdParagraph"><text position="placeholder1">Blah blah</text></control>
          </placeholder>
          <placeholder name="RightColumn">
              <control name="pdRequiredMediumImage"><image position="placeholder1" alt="Blah blah">Blahblah.gif</image></control>
              <control name="pdMediumImage"><image position="placeholder1" alt="">BlahBlah2.gif</image></control>
              <control name="pdRoundedBorderHeadingUnorderedList"><text position="placeholder1">Blah blah</text><ul position="placeholder2"><li>Blah blah</li></ul></control>
              <control name="pdMediumImage"><image position="placeholder1" alt="">The-Image-I-Want-1.gif</image></control>
          </placeholder>
       </product>' )

  INSERT @tProduct 
    ( [ProductDetails] ) 
  VALUES 
    ( N'<product>
         <placeholder name="ProductHeader"><control name="pdRequiredMainHeading"><text position="placeholder1">Blah blah</text></control></placeholder>
         <placeholder name="LeftColumn">
           <control name="pdRequiredSubHeading"><text position="placeholder1">Blah blah</text><text position="placeholder2">Blah blah</text></control>
           <control name="pdRequiredParagraph"><text position="placeholder1">Blah blah</text></control>
           <control name="pdOverlinedUnderlinedHeading"><text position="placeholder1">Blah blah</text></control>
           <control name="pdParagraph"><text position="placeholder1">Blah blah</text></control>
         </placeholder>
         <placeholder name="RightColumn">
           <control name="pdRequiredMediumImage"><image position="placeholder1" alt="Blah blah">Blahblah.gif</image></control>
           <control name="pdRoundedBorderHeading"><text position="placeholder1">Blah blah</text><ul position="placeholder2"><li>Blah blah</li></ul></control>
           <control name="pdMediumImage"><image position="placeholder1" alt="">The-Image-I-Want-12.gif</image></control>
         </placeholder>
       </product>' )

  INSERT @tProduct 
    ( [ProductDetails] ) 
  VALUES 
    ( N'<product>
         <placeholder name="ProductHeader"><control name="pdRequiredMainHeading"><text position="placeholder1">Blah blah</text></control></placeholder>
         <placeholder name="LeftColumn">
           <control name="pdRequiredSubHeading"><text position="placeholder1">Blah blah</text><text position="placeholder2">Blah blah</text></control>
           <control name="pdRequiredParagraph"><text position="placeholder1">Blah blah</text></control>
           <control name="pdOverlinedUnderlinedHeading"><text position="placeholder1">Blah blah</text></control>
           <control name="pdParagraph"><text position="placeholder1">Blah blah</text></control>
         </placeholder>
         <placeholder name="RightColumn">
           <control name="pdRequiredMediumImage"><image position="placeholder1" alt="">The-Image-I-Want-1.gif123.gif</image></control>
           <control name="pdRoundedBorderHeadingUnorderedList"><text position="placeholder1">Blah blah</text><ul position="placeholder2"><li>Blah blah</li></ul></control>
           <control name="pdMediumImage"><image position="placeholder1" alt="Blah blah">Blahblah.gif</image></control>
         </placeholder>
       </product>' )

  INSERT @tProduct 
    ( [ProductDetails] ) 
  VALUES 
    ( N'<product>
         <placeholder name="ProductHeader"><control name="pdRequiredMainHeading"><text position="placeholder1">Blah blah</text></control></placeholder>
         <placeholder name="LeftColumn">
           <control name="pdRequiredSubHeading"><text position="placeholder1">Blah blah</text><text position="placeholder2">Blah blah</text></control>
           <control name="pdRequiredParagraph"><text position="placeholder1">Blah blah</text></control>
           <control name="pdOverlinedUnderlinedHeading"><text position="placeholder1">Blah blah</text></control>
           <control name="pdParagraph"><text position="placeholder1">Blah blah</text></control>
         </placeholder>
         <placeholder name="RightColumn">
           <control name="pdRequiredMediumImage"><image position="placeholder1" alt="">The-Image-I-Want-1.gif1234.gif</image></control>
           <control name="pdRoundedBorder"><text position="placeholder1">Blah blah</text><ul position="placeholder2"><li>Blah blah</li></ul></control>
           <control name="pdMediumImage"><image position="placeholder1" alt="Blah blah">Blahblah.gif</image></control>
         </placeholder>
       </product>' )

  -- ITS AN UPDATE I WANT BUT EVEN THIS I CANT GET TO WORK AS IT DOESNT BRING BACK EVERY IMAGE

  SELECT pProductId, ProductDetails
  FROM @tProduct
  WHERE (ProductDetails.nodes('(//product/placeholder/control/image)') LIKE 'The-Image-I-Want-%')

我尝试了各种版本，包括WHERE ProductDetails.value，但我又可以带回一些节点但不是全部。

我试着创建一个更新查询，从Image-I-Want-.gif中删除数字。

即。

 Image-I-Want-1.gif   becomes Image-I-Want-.gif

 Image-I-Want-12.gif  becomes Image-I-Want-.gif

 Image-I-Want-123.gif becomes Image-I-Want-.gif

等等。

但我甚至无法让它选择所有必需的图像，更不用说更新它们了。它的xQuery语法我不能说得对，也不能找到一个很好的例子，因为我尝试的所有内容到目前为止都有错误。

我可以用c＃或者某些等价脚本编写脚本，但我真的很想知道如何使用xQuery在Transact-Sql中执行它而不使用循环，如果可能的话，就像简单的更新查询一样。

Answer 1

查询：

select pProductId, ProductDetails 
from @tProduct
where ProductDetails.exist('/product/placeholder/control/image[contains(., "The-Image-I-Want-")]') = 1

更新：

update @tProduct
set ProductDetails.modify('replace value of (/product/placeholder/control/image[contains(., "The-Image-I-Want-")]/text())[1] with "The-Image-I-Want-.gif"')
where ProductDetails.exist('/product/placeholder/control/image[contains(., "The-Image-I-Want-")]') = 1

Transact SQL XQuery XML查询

1 个答案: