使用convert进行从XML到SQL Server的数据传输后，无法生成表
我对此有点新意，请耐心等待。我试图从xml文档生成表。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。结果我收到一个错误。我不知道为什么。我正在使用Microsoft SQL Server 2016。
这是我的问题：
WITH XmlFile (Contents) AS
(
SELECT
CONVERT (XML, BulkColumn,2)
FROM
OPENROWSET (BULK 'C:\Users\Owner\Documents\congress\House votes\114 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
以下是我的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>
更新
这就是我现在所处的位置：
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 votes\114 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
这是我的疑问。
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 votes\114 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 votes\114 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 votes\114 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 votes\114 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 votes\114 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。但是存在的文件（如006,012和014）有不同的信息。
1 个答案:
答案 0 :(得分：1)
作为我所选择的所有问题的本质
- 同一目录中有许多xml文件（好吧，很多在一个，很多在另一个目录中）
- 所有文件具有相同的结构
- 您想将它们读入表格
我的假设（你必须适应你的需要）
- 名称是可计算的（在我的情况下是“xml1”，“xml2”，“xml3”......）
- 对于我的测试场景，我创建了三个XML文件（称为“xml1.xml”，“xml2.xml”和“xml3.xml”，其中包含 baby version 的内容。因此循环停止于
4
试试这个
- 我使用拟合结构创建 staging 表（在第一步中不要担心日期时间转换！）
- 我使用计数器来计算循环中的文件名
- 我使用
WHILE循环 - 在此循环中，动态创建完整语句。它会将文件中的XML读入变量并将所有值都推送到表中。
- 执行
EXEC此命令 - 使用简单的
SELECT检查结果
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:\StackOverflow\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，但存在空白，只需将简单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
这将忽略所有文件未找到错误......
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