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我正在尝试完成一项家庭作业，以创建、插入、修改和 xquery 一个 XML 表。到目前为止，我已经能够创建表并插入一些数据行；但是，我被困在修改后的部分。我创建了查询并成功执行，但它没有插入新的材料节点。我必须在所有特征节点下插入这个子节点。

    CREATE TABLE Prod_Catalog
(
ID int NOT NULL Primary Key,
xCol xml NOT NULL,
)

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INSERT INTO dbo.Prod_Catalog VALUES 
(1,'<root><productdescription ProductID="P5500xs" ProductName="Brava 55 TV">
        <features>Features
            <warranty>5 years</warranty>
            <maintenance>Dont hit with hammer</maintenance>
        </features></productdescription>
    </root>'),
(2,'<root><productdescription ProductID="G29-2" ProductName="Panasonic 1100Watt Microwave">
        <features>Features
            <warranty>1 year</warranty>
            <maintenance>Dont cook metal forks!</maintenance>
        </features></productdescription>
    </root>'),
(3,'<root><productdescription ProductID="LG22-XL" ProductName="LG 20 cubic refrigerator">
        <features>Features
            <warranty>1 year</warranty>
            <maintenance>Makes things cold.</maintenance>
        </features></productdescription>
    </root>')

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UPDATE dbo.Prod_Catalog 
SET xCol.modify('insert <materials>Electronics,Glass,Flashy Lights</materials> as first into (/root/productiondescription[@ProductID=("P5500xs")]/features)[1]');
GO

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(3 row(s) affected)

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<root><productdescription ProductID="P5500xs" ProductName="Brava 55 TV"><features>Features<warranty>5 years</warranty><maintenance>Dont hit with hammer</maintenance></features></productdescription></root>
<root><productdescription ProductID="G29-2" ProductName="Panasonic 1100Watt Microwave"><features>Features<warranty>1 year</warranty><maintenance>Dont cook metal forks!</maintenance></features></productdescription></root>
<root><productdescription ProductID="LG22-XL" ProductName="LG 20 cubic refrigerator"><features>Features<warranty>1 year</warranty><maintenance>Makes things cold.</maintenance></features></productdescription></root>

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非常感谢任何建议或指导以使其真正发挥作用。

谢谢！

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1 回答 1

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productiondescription 不是元素名称。产品描述是。– Damien_The_Unbeliever 13 小时前

达米安，

做到了。谢谢你的第二双眼睛。

JHG

于 2015-02-11T21:32:05.103 回答