SQL Server：sp_xml_preparedocument无法从xml中插入/更新db中的数据

Question

我创建了一个存储过程，试图通过该存储过程从xml插入数据。数据未在db中插入或更新。我无法 解决了为什么未插入数据的问题。所以请看一下我具有表结构和SP主体的代码，并指导我将代码更改为 正确运行我的SP。

表结构

CREATE TABLE [dbo].[TickerBrokerStandardDateLineitemValue] (
    [TabName]                 VARCHAR (MAX)   NULL,
    [StandardDate]            VARCHAR (MAX)   NULL,
    [XFundCode]               VARCHAR (MAX)   NULL,
    [BRTab]                   VARCHAR (MAX)   NULL,
    [BRLineItem]              VARCHAR (MAX)   NULL,
    [StandardLineItem]        VARCHAR (MAX)   NULL,
    [StandardValue]           DECIMAL (18, 2) NULL,
    [ActualProvidedByCompany] VARCHAR (MAX)   NULL,
    [ID]                      INT             IDENTITY (1, 1) NOT NULL,
    CONSTRAINT [PK_TickerBrokerStandardDateLineitemValue] PRIMARY KEY CLUSTERED ([ID] ASC)
);

存储过程

CREATE PROCEDURE [dbo].[uspInsertBoggyXmlData]
(
    @inputxml VARCHAR,
    @Status INT OUTPUT  
)

As 

Begin
    Declare @intCntr as INT
    Declare @intError as INT
    Declare @XMLFormat  as              INT

    Declare @TabName                    as Varchar(MAX)
    Declare @StandardDate               as Varchar(MAX)
    Declare @XFundCode                  as Varchar(MAX)
    Declare @BRTab                      as Varchar(MAX)
    Declare @BRLineItem                 as Varchar(MAX)
    Declare @StandardLineItem           as Varchar(MAX)
    Declare @StandardValue              as Varchar(MAX)
    Declare @ActualProvidedByCompany    as Varchar(MAX)


    Exec sp_xml_preparedocument @XMLFormat OUTPUT, @inputxml

    -- Create Cursor from XML Table

    Declare CurRecord
    Cursor For
    Select TabName,StandardDate,XFundCode,BRTab,BRLineItem,StandardLineItem,StandardValue,ActualProvidedByCompany
    From Openxml (@XMLFormat, '/TickerBrokerStandardDateLineitem/TickerBrokerStandardDateLineitemValues/TickerBrokerStandardDateLineitemValue', 3)
    With (
            TabName                 Varchar(MAX),
            StandardDate            Varchar(MAX),
            XFundCode               Varchar(MAX),
            BRTab                   Varchar(MAX),
            BRLineItem              Varchar(MAX),
            StandardLineItem        Varchar(MAX),
            StandardValue           Varchar(MAX),
            ActualProvidedByCompany Varchar(MAX)
         )


    BEGIN TRANSACTION   

    SET @Status=0
    SET @intCntr =0

    Open CurRecord
    Fetch Next From CurRecord Into @TabName,@StandardDate,@XFundCode,@BRTab,@BRLineItem,@StandardLineItem,@StandardValue,@ActualProvidedByCompany

    While (@@Fetch_Status=0)
    Begin

        IF(@StandardValue='')
        BEGIN
            SET @StandardValue = 0
        END

        SELECT @intCntr = COUNT(*) FROM TickerBrokerStandardDateLineitemValue 
            WHERE TabName=@TabName AND StandardDate=@StandardDate AND StandardLineItem=@StandardLineItem 

        IF(@intCntr=0)
        BEGIN
            INSERT INTO TickerBrokerStandardDateLineitemValue (TabName,StandardDate,XFundCode,BRTab,BRLineItem,StandardLineItem,StandardValue,ActualProvidedByCompany) 
            VALUES(@TabName,@StandardDate,@XFundCode,@BRTab,@BRLineItem,@StandardLineItem,CAST(@StandardValue AS DECIMAL),@ActualProvidedByCompany)  

        END
        ELSE
        BEGIN
            UPDATE TickerBrokerStandardDateLineitemValue
            SET XFundCode = @XFundCode,
            BRTab = @BRTab,
            BRLineItem = @BRLineItem,
            StandardValue = CAST(@StandardValue AS DECIMAL),
            ActualProvidedByCompany = @ActualProvidedByCompany
            WHERE TabName=@TabName AND StandardDate=@StandardDate AND StandardLineItem=@StandardLineItem  
        END


        SELECT @intError = @@error if @intError <> 0  Begin ROLLBACK TRANSACTION return  @intError End

        Fetch Next From CurRecord Into @TabName,@StandardDate,@XFundCode,@BRTab,@BRLineItem,@StandardLineItem,@StandardValue,@ActualProvidedByCompany
    End

    Close CurRecord
    Deallocate CurRecord


    select @intError = @@error if @intError <> 0  Begin ROLLBACK TRANSACTION return  @intError End
    SET @Status=1
    COMMIT TRANSACTION
    SELECT @Status
 END

这样我叫SP

---

Declare @inputxml VARCHAR(MAX)  
 declare @Status int

 set @inputxml='<?xml version="1.0" encoding="utf-8"?>
 <TickerBrokerStandardDateLineitem>
   <Ticker />
   <TickerID />
   <TickerBrokerStandardDateLineitemValues>
     <TickerBrokerStandardDateLineitemValue>
       <TabName>CM Model101</TabName>
       <StandardDate>2010 FY</StandardDate>
       <XFundCode>TRIN0001</XFundCode>
       <BRTab></BRTab>
       <BRLineItem></BRLineItem>
       <StandardLineItem>Net Revenue</StandardLineItem>
       <StandardValue>1608.7</StandardValue>
       <ActualProvidedByCompany>NO</ActualProvidedByCompany>
     </TickerBrokerStandardDateLineitemValue>
     <TickerBrokerStandardDateLineitemValue>
       <TabName>JP Bank</TabName>
       <StandardDate>3Q 2018</StandardDate>
       <XFundCode>RD_015</XFundCode>
       <BRTab></BRTab>
       <BRLineItem></BRLineItem>
       <StandardLineItem>Days of Inventory</StandardLineItem>
       <StandardValue></StandardValue>
       <ActualProvidedByCompany>YES</ActualProvidedByCompany>
     </TickerBrokerStandardDateLineitemValue>
     <TickerBrokerStandardDateLineitemValue>
       <TabName>ZZZZZZZZZZZ</TabName>
       <StandardDate>3Q 2018</StandardDate>
       <XFundCode>RD_015</XFundCode>
       <BRTab></BRTab>
       <BRLineItem>991</BRLineItem>
       <StandardLineItem>Days of Inventory</StandardLineItem>
       <StandardValue>77.30</StandardValue>
       <ActualProvidedByCompany>YES</ActualProvidedByCompany>
     </TickerBrokerStandardDateLineitemValue>
   </TickerBrokerStandardDateLineitemValues>
 </TickerBrokerStandardDateLineitem>'

 EXEC [dbo].[uspInsertBoggyXmlData] @inputxml, @Status output

 Select @Status

Answer 1

您的第一个步骤可能是归档或不返回任何东西。您可以检查一下。

begin try
    begin tran
        Exec sp_xml_preparedocument @XMLFormat OUTPUT, @inputxml
    commit 
end try
begin catch
    if @@trancount > 0 rollback tran
    select ERROR_MESSAGE()
    ;throw
end catch

然后，当然，在其余代码之前，您可以检查@XMLFormat以确保它不是NULL

类似地，对于每次迭代，我都会使用错误处理将您的游标尝试包装在自己的事务中。 Erland Sommarskog has blogged extensively处理错误，因此在此不再赘述。