• Sql 操作xml



    /*-SQL中XML区分大小写--*/

    /*1.搜索单个值*/
    declare @myDoc xml
    declare @ProdID nvarchar(20)
    set @myDoc = '<ROOT>
    <Customer CustomerID="VINET" ContactName="Paul Henriot">
       <Order CustomerID="VINET" EmployeeID="5" OrderDate=
               "1996-07-04T00:00:00">
          <OrderDetail OrderID="10248" ProductID="11" Quantity="12"/>
          <ShowName>vinet1</ShowName>
       </Order>
    </Customer>
    <Customer CustomerID="LILAS" ContactName="Carlos Gonzlez">
       <Order CustomerID="LILAS" EmployeeID="3" OrderDate=
               "1996-08-16T00:00:00">
          <OrderDetail OrderID="10283" ProductID="72" Quantity="3"/>
        <ShowName>vinet2</ShowName>
       </Order>
    </Customer>
    </ROOT>'
    --搜索属性
    set @ProdID =  @myDoc.value('(/ROOT/Customer/@CustomerID)[1]', 'nvarchar(20)' )
    select @ProdID


    --搜索内容
    set @ProdID =  @myDoc.value('(/ROOT/Customer/Order/ShowName)[1]', 'nvarchar(20)' )
    select @ProdID

    ---或
    DECLARE @docHandle int
    DECLARE @XmlDocument nvarchar(1000)
    SET @XmlDocument = N'<ROOT>
    <Customer CustomerID="VINET" ContactName="Paul Henriot">
       <Order EmployeeID="5" >
          <OrderID>10248</OrderID>
          <CustomerID>VINET</CustomerID>
          <OrderDate>1996-07-04T00:00:00</OrderDate>
          <OrderDetail ProductID="11" Quantity="12"/>
          <OrderDetail ProductID="42" Quantity="10"/>
       </Order>
    </Customer>
    <Customer CustomerID="LILAS" ContactName="Carlos Gonzlez">
       <Order  EmployeeID="3" >
          <OrderID>10283</OrderID>
          <CustomerID>LILAS</CustomerID>
          <OrderDate>1996-08-16T00:00:00</OrderDate>
          <OrderDetail ProductID="72" Quantity="3"/>
       </Order>
    </Customer>
    </ROOT>'
    -- Create an internal representation of the XML document.
    EXEC sp_xml_preparedocument @docHandle OUTPUT, @XmlDocument
    -- Execute a SELECT statement using OPENXML rowset provider.
    SELECT *
    FROM OPENXML (@docHandle, '/ROOT/Customer/Order/OrderDetail[1]')
    WITH (CustomerID  varchar(10)   '../CustomerID',
          OrderDate   datetime      '../OrderDate',
          ProdID      int           '@ProductID',
          Qty         int           '@Quantity')
    EXEC sp_xml_removedocument @docHandle



    ---exist


    --属性
    SELECT xCol
    FROM   T
    WHERE  xCol.exist('/book/@ISBN[. = "0-7356-1588-2"]') = 1

    --值
    SELECT *
    FROM   tbUser
    WHERE  LabelXml.exist ('/Beisen/label[.="绩优人员1"]') = 1

    --值like
    SELECT *
    FROM   tbUser
    WHERE  LabelXml.exist ('/Beisen/label[contains(.,"绩优人员1")]') = 1

    --值like
    SELECT *
    FROM   tbUser
    WHERE  LabelXml.exist ('/Beisen/label/text()[contains(.,"绩优人员1")]') = 1 OR LabelXml.exist ('/Beisen/label/text()[contains(.,"绩优人员")]') = 1

    更新:

    ALTER PROCEDURE [dbo].[TerminalTest_AddInterrupt]
     -- Add the parameters for the stored procedure here
     @resultID int,
     @testID uniqueidentifier
    AS
    BEGIN
     -- SET NOCOUNT ON added to prevent extra result sets from
     -- interfering with SELECT statements.
     SET NOCOUNT ON;
     Declare @interrupt int
     set @interrupt=(select Result.value('(/TestResult/test[id= sql:variable("@testID")]/interrupt)[1]', 'int' ) from [dbo].[AssessmentUserTestResult]
        where ID=@resultID)+1

      update [dbo].[AssessmentUserTestResult]
         SET Result.modify('
         replace value of (/TestResult/test[id= sql:variable("@testID")]/interrupt[1]/text())[1]
         with     sql:variable("@interrupt")
         ')
         where ID=@resultID 
    END

    s
    DECLARE @isbn varchar(20)
    SET     @isbn = '绩优人员1'
    SELECT  *
    FROM    tbUser
    WHERE   LabelXml.exist ('/Beisen/label/text()[. = sql:variable("@isbn")]') = 1

    Sqlserver中有一字段存如下XML:

     ------------------------

    难点:

    <Root>

             <UserFlag>1002</UserFlag>

    <UserFlag>1003</UserFlag>

    <UserFlag>1005</UserFlag>

    </Root>

    需要搜索包含UserFlag等于1002或1003。。。。N (UserFlag数可能有2个也可能有3,5个)

    谁有好的解决方法,提供一下。。谢谢

     解决方法一:

      select * from tbUser where Exists
    ( select * from (
    SELECT tbUser.userid,T2.Loc.value( '.[1] ', 'int') as flag
    FROM tbUser
    CROSS APPLY LabelXml.nodes('/Root/UserFlag') as T2(Loc)
    ) as b where b.userid=tbUser.userid and b.flag in ('102','101'))

  • 相关阅读:
    文本特征选择的关键算法总结
    偏置-方差分解(Bias-Variance Decomposition)
    排列木桩
    七夕鹊桥分析
    第五十七课、模型视图设计模式(下)------------------狄泰软件学院
    第五十六课、模型视图设计模式(中)------------------狄泰软件学院
    第五十五课、模型视图设计模式(上)------------------狄泰软件学院
    第八十五课、多线程与界面组件的通信(下)------------------狄泰软件学院
    第八十四课、多线程与界面组件的通信(上)------------------狄泰软件学院
    第八十三课、另一种创建线程的方式------------------狄泰软件学院
  • 原文地址:https://www.cnblogs.com/huyg/p/1700832.html
Copyright © 2020-2023  润新知