使用 convert 将数据从 XML 传输到 SQL 服务器后无法生成表格

Question

我对此有点陌生，所以请多多包涵。我正在尝试从 xml 文档生成表格。由于XML文档的一些内容我不得不使用convert方法，我不是很熟悉。结果我得到一个错误。我不确定为什么。我正在使用 Microsoft SQL Server 2016。

这是我的查询：

WITH XmlFile (Contents) AS 
(
    SELECT 
        CONVERT (XML, BulkColumn,2)
    FROM 
        OPENROWSET (BULK 'C:\Users\Owner\Documents\congress\House votes4 congress 2015\passage\roll705.xml', SINGLE_BLOB) AS roll705
)
SELECT *
FROM XmlFile
GO

DECLARE @hdoc int

EXEC sp_xml_preparedocument @hdoc OUTPUT, xmlfile

SELECT *
FROM OPENXML (@hdoc, '/rollcall-vote/vote-metadata', 1)
WITH (
    congress tinyint,
    [session] char(3),
    chamber varchar(40),
    [rollcall-num] smallint,
    [legis-num] varchar(20),
    [vote-question] varchar(1000),
    [vote-result] varchar (20),
    [action-date] date,
    [vote-desc] varchar(1000)
)

EXEC sp_xml_removedocument @hdoc

这是我的 XML 文档的婴儿版本

<?xml-stylesheet type="text/xsl" href="http://clerk.house.gov/evs/vote.xsl"?>
<rollcall-vote>
  <vote-metadata>
    <majority>R</majority>
    <congress>114</congress>
    <session>1st</session>
    <chamber>U.S. House of Representatives</chamber>
    <rollcall-num>705</rollcall-num>
    <legis-num>H R 2029</legis-num>
    <vote-question>On Concurring in Senate Amdt with Amdt Specified in Section 3(a) of H.Res. 566</vote-question>
    <vote-type>YEA-AND-NAY</vote-type>
    <vote-result>Passed</vote-result>
    <action-date>18-Dec-2015</action-date>
    <action-time time-etz="09:49">9:49 AM</action-time>
    <vote-desc>Making appropriations for military construction, the Department of Veterans Affairs, and related agencies for the fiscal year ending September 30, 2016, and for other purposes</vote-desc>
</rollcall-vote>

a picture of my error

更新

这是我现在所在的位置：

CREATE TABLE [dbo].[staagingTable](
    [Counter] INT NOT NULL,
    [majority] [nvarchar](max) NULL,
    [congress] [int] NULL,
    [session] [nvarchar](max) NULL,
    [chamber] [nvarchar](max) NULL,
    [rollcall-num] [int] NULL,
    [legis-num] [nvarchar](max) NULL,
    [vote-question] [nvarchar](max) NULL,
    [vote-type] [nvarchar](max) NULL,
    [vote-result] [nvarchar](max) NULL,
    [action-date] [nvarchar](max) NULL,
    [action-time] [nvarchar](max) NULL,
    [vote-desc] [nvarchar](max) NULL,
    [sourceXML] [XML] NULL
);
GO

DECLARE @Counter INT=1;
DECLARE @command VARCHAR(MAX);

WHILE @Counter<800
BEGIN
    SET @command=
    '
    DECLARE @xml XML=
    (
    SELECT BulkColumn
    FROM OPENROWSET (BULK ''C:\Users\Owner\Documents\congress\House votes4 congress 2015\Passage\roll' +  CAST(@Counter AS VARCHAR(10)) + '.xml'', SINGLE_BLOB) AS c
    );

    INSERT INTO dbo.stagingTable(Counter,majority,congress,[session],chamber
              ,[rollcall-num],[legis-num],[legislator],[state],[party],[vote],[vote-question],[vote-type]
              ,[vote-result],[action-date],[action-time],[vote-desc],)
    SELECT ' +  CAST(@Counter AS VARCHAR(10)) + 
         ',v.value(N''../maority[1]'',N''nvarchar(max)'') 
          ,v.value(N''../congress[1]'',N''int'') 
          ,v.value(N''../session[1]'',N''nvarchar(max)'') 
          ,v.value(N''../chamber[1]'',N''nvarchar(max)'')
          ,v.value(N''../rollcall-num[1]'',N''int'') 
          ,v.value(N''../legis-num[1]'',N''nvarchar(max)'') 
          ,v.value(N''../vote-question[1]'',N''nvarchar(max)'')
          ,v.value(N''../vote-type[1]'',N''nvarchar(max)'') 
          ,v.value(N''../vote-result[1]'',N''nvarchar(max)'') 
          ,v.value(N''../action-date[1]'',N''nvarchar(max)'') 
          ,v.value(N''../action-time[1]'',N''nvarchar(max)'') 
          ,v.value(N''../vote-desc[1]'',N''nvarchar(max)'') 
          ,@xml
    FROM @xml.nodes(N''/rollcall-vote/vote-metadata'') AS A(v);
    ';
    BEGIN TRY
EXEC(@command);
END TRY
BEGIN CATCH
END CATCH;
    SET @Counter=@Counter+1;
END
SELECT * FROM dbo.staagingTable;
GO
DROP TABLE dbo.staagingTable;

this is a screenshot of my data in my folder

更新

这是我的查询。

CREATE TABLE [dbo].[staagingTable](
    [Counter] INT NOT NULL,
    [majority] [nvarchar](max) NULL,
    [congress] [int] NULL,
    [session] [nvarchar](max) NULL,
    [chamber] [nvarchar](max) NULL,
    [rollcall-num] [int] NULL,
    [legis-num] [nvarchar](max) NULL,
    [vote-question] [nvarchar](max) NULL,
    [vote-type] [nvarchar](max) NULL,
    [vote-result] [nvarchar](max) NULL,
    [action-date] [nvarchar](max) NULL,
    [action-time] [nvarchar](max) NULL,
    [vote-desc] [nvarchar](max) NULL,
    [sourceXML] [XML] NULL
);
GO

DECLARE @Counter INT=1;
DECLARE @command VARCHAR(MAX);

WHILE @Counter<800
BEGIN
    SET @command=
    '
    DECLARE @xml XML=
    (
    SELECT BulkColumn
    FROM OPENROWSET (BULK ''C:\Users\Owner\Documents\congress\House votes4 congress 2015\Passage\roll' + REPLACE(STR(@Counter,3),' ','0') + CAST(@Counter AS VARCHAR(10)) + '.xml'', SINGLE_BLOB) AS c
    );

    INSERT INTO dbo.stagingTable(Counter,majority,congress,[session],chamber
              ,[rollcall-num],[legis-num],[vote-question],[vote-type]
              ,[vote-result],[action-date],[action-time],[vote-desc],)
    SELECT ' +  CAST(@Counter AS VARCHAR(10)) + 
         ',v.value(N''majority[1]'',N''nvarchar(max)'') 
          ,v.value(N''congress[1]'',N''int'') 
          ,v.value(N''session[1]'',N''nvarchar(max)'') 
          ,v.value(N''chamber[1]'',N''nvarchar(max)'')
          ,v.value(N''rollcall-num[1]'',N''int'') 
          ,v.value(N''legis-num[1]'',N''nvarchar(max)'') 
          ,v.value(N''vote-question[1]'',N''nvarchar(max)'')
          ,v.value(N''vote-type[1]'',N''nvarchar(max)'') 
          ,v.value(N''vote-result[1]'',N''nvarchar(max)'') 
          ,v.value(N''action-date[1]'',N''nvarchar(max)'') 
          ,v.value(N''action-time[1]'',N''nvarchar(max)'') 
          ,v.value(N''vote-desc[1]'',N''nvarchar(max)'') 
          ,@xml
    FROM @xml.nodes(N''/rollcall-vote/vote-metadata'') AS A(v);
    ';
    BEGIN TRY
EXEC(@command);
END TRY
BEGIN CATCH print 'error'
END CATCH;
    SET @Counter=@Counter+1;
END
SELECT * FROM dbo.staagingTable;
GO
DROP TABLE dbo.staagingTable;

更新

CREATE TABLE [dbo].[staagingTable](
    [Counter] INT NOT NULL,
    [majority] [nvarchar](max) NULL,
    [congress] [int] NULL,
    [session] [nvarchar](max) NULL,
    [chamber] [nvarchar](max) NULL,
    [rollcall-num] [int] NULL,
    [legis-num] [nvarchar](max) NULL,
    [vote-question] [nvarchar](max) NULL,
    [vote-type] [nvarchar](max) NULL,
    [vote-result] [nvarchar](max) NULL,
    [action-date] [nvarchar](max) NULL,
    [action-time] [nvarchar](max) NULL,
    [vote-desc] [nvarchar](max) NULL,
    [sourceXML] [XML] NULL
);
GO

DECLARE @Counter INT=1;
DECLARE @command VARCHAR(MAX);

WHILE @Counter<800
BEGIN
    SET @command=
    '
    DECLARE @xml XML=
    (
    SELECT BulkColumn
    FROM OPENROWSET (BULK ''C:\Users\Owner\Documents\congress\House votes4 congress 2015\Passage\roll' + REPLACE(STR(@Counter,3),' ','0') + CAST(@Counter AS VARCHAR(10)) + '.xml'', SINGLE_BLOB) AS c
    );

    INSERT INTO dbo.stagingTable(Counter,majority,congress,[session],chamber
              ,[rollcall-num],[legis-num],[vote-question],[vote-type]
              ,[vote-result],[action-date],[action-time],[vote-desc],)
    SELECT ' +  CAST(@Counter AS VARCHAR(10)) + 
         ',v.value(N''majority[1]'',N''nvarchar(max)'') 
          ,v.value(N''congress[1]'',N''int'') 
          ,v.value(N''session[1]'',N''nvarchar(max)'') 
          ,v.value(N''chamber[1]'',N''nvarchar(max)'')
          ,v.value(N''rollcall-num[1]'',N''int'') 
          ,v.value(N''legis-num[1]'',N''nvarchar(max)'') 
          ,v.value(N''vote-question[1]'',N''nvarchar(max)'')
          ,v.value(N''vote-type[1]'',N''nvarchar(max)'') 
          ,v.value(N''vote-result[1]'',N''nvarchar(max)'') 
          ,v.value(N''action-date[1]'',N''nvarchar(max)'') 
          ,v.value(N''action-time[1]'',N''nvarchar(max)'') 
          ,v.value(N''vote-desc[1]'',N''nvarchar(max)'') 
          ,v.value(N''sourceXML[1]'',N''XML)'')
    FROM @xml.nodes(N''/rollcall-vote/vote-metadata'') AS A(v);
    ';
    BEGIN TRY
EXEC(@command);
END TRY
BEGIN CATCH print 'error'
END CATCH;
    SET @Counter=@Counter+1;
END
SELECT * FROM dbo.staagingTable;
GO
DROP TABLE dbo.staagingTable;

更新

CREATE TABLE [dbo].[staagingTable](
    [Counter] INT NOT NULL,
    [majority] [nvarchar](max) NULL,
    [congress] [int] NULL,
    [session] [nvarchar](max) NULL,
    [chamber] [nvarchar](max) NULL,
    [rollcall-num] [int] NULL,
    [legis-num] [nvarchar](max) NULL,
    [vote-question] [nvarchar](max) NULL,
    [vote-type] [nvarchar](max) NULL,
    [vote-result] [nvarchar](max) NULL,
    [action-date] [nvarchar](max) NULL,
    [action-time] [nvarchar](max) NULL,
    [vote-desc] [nvarchar](max) NULL,
    [sourceXML] [XML] NULL
);
GO

DECLARE @Counter INT=1;
DECLARE @command VARCHAR(MAX);

WHILE @Counter<800
BEGIN
    SET @command=
    '
    DECLARE @xml XML=
    (
    SELECT BulkColumn
    FROM OPENROWSET (BULK ''C:\Users\Owner\Documents\congress\House votes4 congress 2015\Passage\roll' + REPLACE(STR(@Counter,3),' ','0') + CAST(@Counter AS VARCHAR(10)) + '.xml'', SINGLE_BLOB) AS c
    );

    INSERT INTO dbo.stagingTable(Counter,majority,congress,[session],chamber
              ,[rollcall-num],[legis-num],[vote-question],[vote-type]
              ,[vote-result],[action-date],[action-time],[vote-desc],)
    SELECT ' +  CAST(@Counter AS VARCHAR(10)) + 
         ',v.value(N''majority[1]'',N''nvarchar(max)'') 
          ,v.value(N''congress[1]'',N''int'') 
          ,v.value(N''session[1]'',N''nvarchar(max)'') 
          ,v.value(N''chamber[1]'',N''nvarchar(max)'')
          ,v.value(N''rollcall-num[1]'',N''int'') 
          ,v.value(N''legis-num[1]'',N''nvarchar(max)'') 
          ,v.value(N''vote-question[1]'',N''nvarchar(max)'')
          ,v.value(N''vote-type[1]'',N''nvarchar(max)'') 
          ,v.value(N''vote-result[1]'',N''nvarchar(max)'') 
          ,v.value(N''action-date[1]'',N''nvarchar(max)'') 
          ,v.value(N''action-time[1]'',N''nvarchar(max)'') 
          ,v.value(N''vote-desc[1]'',N''nvarchar(max)'') 
          ,@xml
    FROM @xml.nodes(N''/rollcall-vote/vote-metadata'') AS A(v);
    ';
    BEGIN TRY
EXEC(@command);
END TRY
BEGIN CATCH print ERROR_MESSAGE()
END CATCH;
    SET @Counter=@Counter+1;
END
SELECT * FROM dbo.staagingTable;
GO
DROP TABLE dbo.staagingTable;

新错误

更新

CREATE TABLE [dbo].[staagingTable](
    [Counter] INT NOT NULL,
    [majority] [nvarchar](max) NULL,
    [congress] [int] NULL,
    [session] [nvarchar](max) NULL,
    [chamber] [nvarchar](max) NULL,
    [rollcall-num] [int] NULL,
    [legis-num] [nvarchar](max) NULL,
    [vote-question] [nvarchar](max) NULL,
    [vote-type] [nvarchar](max) NULL,
    [vote-result] [nvarchar](max) NULL,
    [action-date] [nvarchar](max) NULL,
    [action-time] [nvarchar](max) NULL,
    [vote-desc] [nvarchar](max) NULL,
    [sourceXML] [XML] NULL
);
GO

DECLARE @Counter INT=1;
DECLARE @command VARCHAR(MAX);

WHILE @Counter<800
BEGIN
    SET @command=
    '
    DECLARE @xml XML=
    (
    SELECT BulkColumn
    FROM OPENROWSET (BULK ''C:\Users\Owner\Documents\congress\House votes4 congress 2015\Passage\roll' + REPLACE(STR(@Counter,3),' ','0') + CAST(@Counter AS VARCHAR(10)) + '.xml'', SINGLE_BLOB) AS c
    );

    INSERT INTO dbo.stagingTable(Counter,majority,congress,[session],chamber
              ,[rollcall-num],[legis-num],[vote-question],[vote-type]
              ,[vote-result],[action-date],[action-time],[vote-desc],[sourceXML])
    SELECT ' +
         ',v.value(N''majority[1]'',N''nvarchar(max)'') 
          ,v.value(N''congress[1]'',N''int'') 
          ,v.value(N''session[1]'',N''nvarchar(max)'') 
          ,v.value(N''chamber[1]'',N''nvarchar(max)'')
          ,v.value(N''rollcall-num[1]'',N''int'') 
          ,v.value(N''legis-num[1]'',N''nvarchar(max)'') 
          ,v.value(N''vote-question[1]'',N''nvarchar(max)'')
          ,v.value(N''vote-type[1]'',N''nvarchar(max)'') 
          ,v.value(N''vote-result[1]'',N''nvarchar(max)'') 
          ,v.value(N''action-date[1]'',N''nvarchar(max)'') 
          ,v.value(N''action-time[1]'',N''nvarchar(max)'') 
          ,v.value(N''vote-desc[1]'',N''nvarchar(max)'') 
          ,@xml
    FROM @xml.nodes(N''/rollcall-vote/vote-metadata'') AS A(v);
    ';
    BEGIN TRY
EXEC(@command);
END TRY
BEGIN CATCH print ERROR_MESSAGE()
END CATCH;
    SET @Counter=@Counter+1;
END
SELECT * FROM dbo.staagingTable;
GO
DROP TABLE dbo.staagingTable;

另一个更新

CREATE TABLE [dbo].[staagingTable](
    [Counter] INT NOT NULL,
    [majority] [nvarchar](max) NULL,
    [congress] [int] NULL,
    [session] [nvarchar](max) NULL,
    [chamber] [nvarchar](max) NULL,
    [rollcall-num] [int] NULL,
    [legis-num] [nvarchar](max) NULL,
    [vote-question] [nvarchar](max) NULL,
    [vote-type] [nvarchar](max) NULL,
    [vote-result] [nvarchar](max) NULL,
    [action-date] [nvarchar](max) NULL,
    [action-time] [nvarchar](max) NULL,
    [vote-desc] [nvarchar](max) NULL,
    [sourceXML] [XML] NULL
);
GO

DECLARE @Counter INT=1;
DECLARE @command VARCHAR(MAX);

WHILE @Counter<800
BEGIN
    SET @command=
    '
    DECLARE @xml XML=
    (
    SELECT BulkColumn
    FROM OPENROWSET (BULK ''C:\Users\Owner\Documents\congress\House votes4 congress 2015\Passage\roll' + REPLACE(STR(@Counter,3),' ','0') + '.xml'', SINGLE_BLOB) AS c
    );

    INSERT INTO dbo.staagingTable(Counter,majority,congress,[session],chamber
              ,[rollcall-num],[legis-num],[vote-question],[vote-type]
              ,[vote-result],[action-date],[action-time],[vote-desc],[sourceXML])
    SELECT ' +  CAST(@Counter AS VARCHAR(10)) + 
         ',v.value(N''majority[1]'',N''nvarchar(max)'') 
          ,v.value(N''congress[1]'',N''int'') 
          ,v.value(N''session[1]'',N''nvarchar(max)'') 
          ,v.value(N''chamber[1]'',N''nvarchar(max)'')
          ,v.value(N''rollcall-num[1]'',N''int'') 
          ,v.value(N''legis-num[1]'',N''nvarchar(max)'') 
          ,v.value(N''vote-question[1]'',N''nvarchar(max)'')
          ,v.value(N''vote-type[1]'',N''nvarchar(max)'') 
          ,v.value(N''vote-result[1]'',N''nvarchar(max)'') 
          ,v.value(N''action-date[1]'',N''nvarchar(max)'') 
          ,v.value(N''action-time[1]'',N''nvarchar(max)'') 
          ,v.value(N''vote-desc[1]'',N''nvarchar(max)'') 
          ,@xml
    FROM @xml.nodes(N''/rollcall-vote/vote-metadata'') AS A(v);
    ';
    BEGIN TRY
EXEC(@command);
END TRY
BEGIN CATCH print ERROR_MESSAGE()
END CATCH;
    SET @Counter=@Counter+1;
END
SELECT * FROM dbo.staagingTable;
GO
DROP TABLE dbo.staagingTable;

在下图中您可以看到错误。不存在的文件具有相同的旧批量文件未找到消息。但是确实存在的文件（如 006、012 和 014）有不同的消息。

Answer 1

作为你所有通过问题的精华我挑

同一个目录下有很多xml个文件（嗯，一个里面很多，另一个里面很多）
所有文件都具有相同的结构
您想将它们读入 table

我的假设（你必须适应你的需要）

名称是 computable（在我的例子中是 "xml1"、"xml2"、"xml3" ...）
对于我的测试场景，我创建了三个 XML 文件（名为 "xml1.xml"、"xml2.xml" 和 "xml3.xml"，其中包含您的 婴儿版本。因此循环停止在 4

试试这个

我创建了一个 staging table 具有合适的结构（不要在第一步中为日期时间转换烦恼！）
我使用计数器计算循环中的文件名
我使用 WHILE 循环
在这个循环中，完整的语句是动态创建的。它会将文件中的 XML 读取到一个变量中，并将所有值推送到 table.
使用EXEC执行此命令
用简单的 SELECT

这是代码

CREATE TABLE [dbo].[stagingTable](
    [Counter] INT NOT NULL,
    [majority] [nvarchar](max) NULL,
    [congress] [int] NULL,
    [session] [nvarchar](max) NULL,
    [chamber] [nvarchar](max) NULL,
    [rollcall-num] [int] NULL,
    [legis-num] [nvarchar](max) NULL,
    [vote-question] [nvarchar](max) NULL,
    [vote-type] [nvarchar](max) NULL,
    [vote-result] [nvarchar](max) NULL,
    [action-date] [nvarchar](max) NULL,
    [action-time] [nvarchar](max) NULL,
    [vote-desc] [nvarchar](max) NULL
);
GO

DECLARE @Counter INT=1;
DECLARE @command VARCHAR(MAX);

WHILE @Counter<4
BEGIN
    SET @command=
    '
    DECLARE @xml XML=
    (
    SELECT BulkColumn
    FROM OPENROWSET (BULK ''C:\Whosebug\xml' +  CAST(@Counter AS VARCHAR(10)) + '.xml'', SINGLE_BLOB) AS c
    );

    INSERT INTO dbo.stagingTable(Counter,majority,congress,[session],chamber
              ,[rollcall-num],[legis-num],[vote-question],[vote-type]
              ,[vote-result],[action-date],[action-time],[vote-desc])
    SELECT ' +  CAST(@Counter AS VARCHAR(10)) + 
         ',v.value(N''maority[1]'',N''nvarchar(max)'') 
          ,v.value(N''congress[1]'',N''int'') 
          ,v.value(N''session[1]'',N''nvarchar(max)'') 
          ,v.value(N''chamber[1]'',N''nvarchar(max)'')
          ,v.value(N''rollcall-num[1]'',N''int'') 
          ,v.value(N''legis-num[1]'',N''nvarchar(max)'') 
          ,v.value(N''vote-question[1]'',N''nvarchar(max)'')
          ,v.value(N''vote-type[1]'',N''nvarchar(max)'') 
          ,v.value(N''vote-result[1]'',N''nvarchar(max)'') 
          ,v.value(N''action-date[1]'',N''nvarchar(max)'') 
          ,v.value(N''action-time[1]'',N''nvarchar(max)'') 
          ,v.value(N''vote-desc[1]'',N''nvarchar(max)'') 
    FROM @xml.nodes(N''/rollcall-vote/vote-metadata'') AS A(v);
    ';
    EXEC(@command);
    SET @Counter=@Counter+1;
END
SELECT * FROM dbo.stagingTable;
GO
DROP TABLE dbo.stagingTable;

更新

如果文件名是可计算的，但有差距，只需将简单的 EXEC(@cmd) 更改为：

BEGIN TRY
EXEC(@command);
END TRY
BEGIN CATCH
--Might make sense to write some error meta data into a log table
END CATCH

这将忽略所有 未找到文件 错误...

使用 convert 将数据从 XML 传输到 SQL 服务器后无法生成表格

Unable to generate tables after using convert for data transfer from XML to SQL Server

xml

sql

sql-server

sql-convert

data-conversion

更新