使用 bcp 实用程序和 SQL Server 2008 将表导出到带有列标题(列名称)的文件

StackOverflow https://stackoverflow.com/questions/1355876

  •  20-09-2019
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我见过许多尝试让 bcp 实用程序导出列名和数据的 hack。如果我所做的只是将表转储到文本文件,让 bcp 添加列标题的最直接方法是什么?

这是我当前使用的 bcp 命令:

bcp myschema.dbo.myTableout myTable.csv /SmyServer01 /c /t, -T
有帮助吗?

解决方案

,最简单的是使用queryout选项并使用union all与实际的表的内容链接列的列表

    bcp "select 'col1', 'col2',... union all select * from myschema.dbo.myTableout" queryout myTable.csv /SmyServer01 /c /t, -T

的示例:

create table Question1355876 
(id int, name varchar(10), someinfo numeric)

insert into Question1355876 
values (1, 'a', 123.12)
     , (2, 'b', 456.78)
     , (3, 'c', 901.12)
     , (4, 'd', 353.76)

此查询将返回与该标头作为第一行中的信息。 (注意数值的铸件)

select 'col1', 'col2', 'col3'
union all
select cast(id as varchar(10)), name, cast(someinfo as varchar(28))
from Question1355876

在BCP命令将是:

bcp "select 'col1', 'col2', 'col3' union all select cast(id as varchar(10)), name, cast(someinfo as varchar(28)) from Question1355876" queryout myTable.csv /SmyServer01 /c /t, -T

其他提示

此方法自动输出列名与行数据使用 BCP

在脚本写入一个文件中的列标题(从INFORMATION_SCHEMA.COLUMNS表读)然后追加用表数据的另一文件中。

在最终输出组合成TableData.csv它具有头和行数据。只需更换环境变量在顶部指定服务器,数据库和表名。

set BCP_EXPORT_SERVER=put_my_server_name_here
set BCP_EXPORT_DB=put_my_db_name_here
set BCP_EXPORT_TABLE=put_my_table_name_here

BCP "DECLARE @colnames VARCHAR(max);SELECT @colnames = COALESCE(@colnames + ',', '') + column_name from %BCP_EXPORT_DB%.INFORMATION_SCHEMA.COLUMNS where TABLE_NAME='%BCP_EXPORT_TABLE%'; select @colnames;" queryout HeadersOnly.csv -c -T -S%BCP_EXPORT_SERVER%

BCP %BCP_EXPORT_DB%.dbo.%BCP_EXPORT_TABLE% out TableDataWithoutHeaders.csv -c -t, -T -S%BCP_EXPORT_SERVER%

set BCP_EXPORT_SERVER=
set BCP_EXPORT_DB=
set BCP_EXPORT_TABLE=

copy /b HeadersOnly.csv+TableDataWithoutHeaders.csv TableData.csv

del HeadersOnly.csv
del TableDataWithoutHeaders.csv

请注意,如果您需要提供凭据,请更换-U my_username -P MY_PASSWORD

-T选项

此方法具有总是通过使用INFORMATION_SCHEMA.COLUMNS具有与表同步的列名的优点。缺点是,它创建的临时文件。微软应该真正解决bcp实用工具来支持这一点。

此解决方案使用从此处的SQL行级联特技>使用BCP的想法结合从此处

一个很好的选择是SQLCMD,因为它不包括报头,但它具有增加的空间填充围绕易读性的数据的缺点。您可以使用的GnuWin32的sed(流编辑)工具来清理结果合并SQLCMD。下面是为我工作,虽然我不能保证它是防弹的例子。

首先,导出数据:

sqlcmd -S Server -i C:\Temp\Query.sql -o C:\Temp\Results.txt -s"    "

-s" "是在双引号制表符。我发现,你必须通过一个批处理文件来运行这个命令,否则Windows命令提示符将把选项卡,自动完成指令,将在地方的标签的替代文件名。

如果query.sql的含有:

SELECT name, object_id, type_desc, create_date
FROM MSDB.sys.views
WHERE name LIKE 'sysmail%'

然后你会看到在RESULTS.TXT像这样

name                                          object_id   type_desc           create_date            
-------------------------------------------   ----------- ------------------- -----------------------
sysmail_allitems                               2001442204 VIEW                2012-07-20 17:38:27.820
sysmail_sentitems                              2017442261 VIEW                2012-07-20 17:38:27.837
sysmail_unsentitems                            2033442318 VIEW                2012-07-20 17:38:27.850
sysmail_faileditems                            2049442375 VIEW                2012-07-20 17:38:27.860
sysmail_mailattachments                        2097442546 VIEW                2012-07-20 17:38:27.933
sysmail_event_log                              2129442660 VIEW                2012-07-20 17:38:28.040

(6 rows affected)

接着,使用SED解析文本:

sed -r "s/ +\t/\t/g" C:\Temp\Results.txt | sed -r "s/\t +/\t/g" | sed -r "s/(^ +| +$)//g" | sed 2d | sed $d | sed "/^$/d" > C:\Temp\Results_New.txt

请注意的是,2d命令表示删除所述第二线,所述$d命令表示删除最后一行,并"/^$/d"删除任何空行。

在清理文件看起来像这样(虽然我替换|标签,使他们可以在这里可见):

name|object_id|type_desc|create_date
sysmail_allitems|2001442204|VIEW|2012-07-20 17:38:27.820
sysmail_sentitems|2017442261|VIEW|2012-07-20 17:38:27.837
sysmail_unsentitems|2033442318|VIEW|2012-07-20 17:38:27.850
sysmail_faileditems|2049442375|VIEW|2012-07-20 17:38:27.860
sysmail_mailattachments|2097442546|VIEW|2012-07-20 17:38:27.933
sysmail_event_log|2129442660|VIEW|2012-07-20 17:38:28.040

我试图找出如何最近做到这一点,而我喜欢在上面最流行的解决方案,这根本就不是我,我需要的名字是化名的,我在脚本中输入的,所以我用工作一些批处理文件(从同事一些帮助)来完成自定义表名。

这发起BCP批处理文件具有执行另一脚本合并一个模板文件使用的标题名称,并使用下面的代码刚出口与BCP的文件中的脚本的底部的线。希望这可以帮助别人,这是我的情况。

echo Add headers from template file to exported sql files....
Echo School 0031
copy e:\genin\templates\TEMPLATE_Courses.csv + e:\genin\0031\courses0031.csv e:\genin\finished\courses0031.csv /b

我有同样的问题。我需要使用SQL服务器BCP utility.This方式我出口表“报头”与数据到同一导出的文件一气呵成导出的列标题。

DECLARE @table_name  VARCHAR(50) ='mytable'
DECLARE @columnHeader VARCHAR(8000)
SELECT @columnHeader = COALESCE(@columnHeader+',' ,'')+ ''''+column_name +'''' FROM Nal2013.INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME=@table_name
SELECT @raw_sql = 'bcp "SELECT '+ @columnHeader +' UNION ALL SELECT * FROM mytable" queryout c:\datafile.csv -c -t, -T -S '+ @@servername
EXEC  xp_cmdshell @raw_sql

快乐编码:)

从我所知道的,BCP只出口的数据-我不认为有任何种方法使其出口的标题排列名。

一个常用的技术看到解决这个是使用查看过你的实际数据用于出口,这基本上没有一个联盟的所有超过两个声明:

  • 的第一次发言中得到回一行列标题
  • 实际数据出口

然后使用bcp对这一观点,而不是基础数据表。

Marc

除了 marc_s 的解决方案之外,您还可以使用 奥SQL 或者 sqlcmd

这包括标头,它可以像使用 -Q 和 -o 的 bcp 一样工作。但是,它们不支持 bcp 等格式文件。

下面是一个非常简单的存储过程的伎俩以及..

    CREATE PROCEDURE GetBCPTable
    @table_name varchar(200)
AS
BEGIN
    DECLARE @raw_sql nvarchar(3000)

    DECLARE @columnHeader VARCHAR(8000)
    SELECT @columnHeader = COALESCE(@columnHeader+',' ,'')+ ''''+column_name +'''' FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = @table_name

    DECLARE @ColumnList VARCHAR(8000)
    SELECT @ColumnList = COALESCE(@ColumnList+',' ,'')+ 'CAST('+column_name +' AS VARCHAR)' FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = @table_name

    SELECT @raw_sql = 'SELECT '+ @columnHeader +' UNION ALL SELECT ' + @ColumnList + ' FROM ' + @table_name 
    --PRINT @raw_SQL
    EXECUTE sp_executesql  @raw_sql
END
GO

每个人的版本做的事情一点不同。这个版本,我已经开发了多年。这个版本似乎要考虑的所有问题我曾经遇到过。只是填充数据集成一个表格然后通过表的名称,以这种储存程序。

我把这存储的过程是这样的:

EXEC    @return_value = *DB_You_Create_The_SP_In*.[dbo].[Export_CSVFile]
        @DB = N'*YourDB*',
        @TABLE_NAME = N'*YourTable*',
        @Dir = N'*YourOutputDirectory*',
        @File = N'*YourOutputFileName*'

还有两个其他变量:

  • @NullBlanks--这将需要任何领域,没有一个值和 空。这是有用的,因为在真正意义上的CSV 说明每个数据点应该有引号。如果你 有一个大数据集这将节省大量的空间 没有""(两个双引号),在这些领域。如果你不觉得这是有用的,然后将其设置为0。
  • @IncludeHeaders-我有一个存储程序,用于输出CSV 的文件,因此我做有标志的事件,我不想头。

这将创建的储存过程:

CREATE PROCEDURE [dbo].[Export_CSVFile] 
(@DB varchar(128),@TABLE_NAME varchar(128), @Dir varchar(255), @File varchar(250),@NULLBLANKS bit=1,@IncludeHeader bit=1)
AS

DECLARE @CSVHeader varchar(max)=''  --CSV Header
, @CmdExc varchar(max)=''           --EXEC commands
, @SQL varchar(max)=''              --SQL Statements
, @COLUMN_NAME varchar(128)=''      --Column Names
, @DATA_TYPE varchar(15)=''         --Data Types

DECLARE @T table (COLUMN_NAME varchar(128),DATA_TYPE varchar(15))

--BEGIN Ensure Dir variable has a backslash as the final character
IF NOT RIGHT(@Dir,1) = '\' BEGIN SET @Dir=@Dir+'\' END
--END

--BEGIN Drop TEMP Table IF Exists
SET @SQL='IF (EXISTS (SELECT * FROM '+@DB+'.INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = ''TEMP_'+@TABLE_NAME+''')) BEGIN EXEC(''DROP TABLE ['+@DB+'].[dbo].[TEMP_'+@TABLE_NAME+']'') END'
EXEC(@SQL)
--END

SET @SQL='SELECT COLUMN_NAME,DATA_TYPE FROM '+@DB+'.INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME ='''+@TABLE_NAME+''' ORDER BY ORDINAL_POSITION'
INSERT INTO @T
EXEC (@SQL)

SET @SQL=''
WHILE exists(SELECT * FROM @T)
    BEGIN
        SELECT top(1) @DATA_TYPE=DATA_TYPE,@COLUMN_NAME=COLUMN_NAME FROM @T
        IF @DATA_TYPE LIKE '%char%' OR @DATA_TYPE LIKE '%text'
            BEGIN 
            IF @NULLBLANKS = 1
                BEGIN
                    SET @SQL+='CASE PATINDEX(''%[0-9,a-z]%'','+@COLUMN_NAME+') WHEN ''0'' THEN NULL ELSE ''"''+RTRIM(LTRIM('+@COLUMN_NAME+'))+''"'' END AS ['+@COLUMN_NAME+'],' 
                END
            ELSE
                BEGIN
                    SET @SQL+='''"''+RTRIM(LTRIM('+@COLUMN_NAME+'))+''"'' AS ['+@COLUMN_NAME+'],' 
                END
            END
        ELSE
            BEGIN SET @SQL+=@COLUMN_NAME+',' END
            SET @CSVHeader+='"'+@COLUMN_NAME+'",'
            DELETE top(1) @T
    END 

IF LEN(@CSVHeader)>1 BEGIN SET @CSVHeader=RTRIM(LTRIM(LEFT(@CSVHeader,LEN(@CSVHeader)-1))) END

IF LEN(@SQL)>1 BEGIN SET @SQL= 'SELECT '+ LEFT(@SQL,LEN(@SQL)-1) + ' INTO ['+@DB+'].[dbo].[TEMP_'+@TABLE_NAME+'] FROM ['+@DB+'].[dbo].['+@TABLE_NAME+']' END
EXEC(@SQL)

IF @IncludeHeader=0 
    BEGIN
        --BEGIN Create Data file
        SET  @CmdExc ='BCP "'+@DB+'.dbo.TEMP_'+@TABLE_NAME+'" out "'+@Dir+'Data_'+@TABLE_NAME+'.csv" /c /t, -T' 
        EXEC master..xp_cmdshell @CmdExc
        --END
        SET  @CmdExc ='del '+@Dir+@File EXEC master..xp_cmdshell @CmdExc
        SET  @CmdExc ='ren '+@Dir+'Data_'+@TABLE_NAME+'.csv '+@File EXEC master..xp_cmdshell @CmdExc
    END 
else
    BEGIN

        --BEGIN Create Header and main file
        SET  @CmdExc ='echo '+@CSVHeader+'> '+@Dir+@File EXEC master..xp_cmdshell @CmdExc
        --END

        --BEGIN Create Data file
        SET  @CmdExc ='BCP "'+@DB+'.dbo.TEMP_'+@TABLE_NAME+'" out "'+@Dir+'Data_'+@TABLE_NAME+'.csv" /c /t, -T' 
        EXEC master..xp_cmdshell @CmdExc
        --END

        --BEGIN Merge Data File With Header File
        SET @CmdExc = 'TYPE '+@Dir+'Data_'+@TABLE_NAME+'.csv >> '+@Dir+@File EXEC master..xp_cmdshell @CmdExc
        --END

        --BEGIN Delete Data File
        SET @CmdExc = 'DEL /q '+@Dir+'Data_'+@TABLE_NAME+'.csv' EXEC master..xp_cmdshell @CmdExc
        --END
    END
--BEGIN Drop TEMP Table IF Exists
SET @SQL='IF (EXISTS (SELECT * FROM '+@DB+'.INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = ''TEMP_'+@TABLE_NAME+''')) BEGIN EXEC(''DROP TABLE ['+@DB+'].[dbo].[TEMP_'+@TABLE_NAME+']'') END'
EXEC(@SQL)

您应该能够与一个CTE视图和含有BCP码的一个批处理文件,以解决这个问题。首先创建视图。由于其相对简单的,我没有创建一个临时表,通常我

CREATE VIEW [dbo].[vwxMySAMPLE_EXTRACT_COLUMNS]
  AS
    WITH MYBCP_CTE (COLUMN_NM, ORD_POS, TXT)
     AS
      ( SELECT  COLUMN_NAME
             , ORDINAL_POSITION
             , CAST(COLUMN_NAME AS VARCHAR(MAX))
        FROM [INFORMATION_SCHEMA].[COLUMNS]   
        WHERE TABLE_NAME = 'xMySAMPLE_EXTRACT_NEW'
        AND ORDINAL_POSITION = 1

        UNION ALL

        SELECT  V.COLUMN_NAME
              , V.ORDINAL_POSITION
              , CAST(C.TXT + '|' + V.COLUMN_NAME AS VARCHAR(MAX))
        FROM [INFORMATION_SCHEMA].[COLUMNS]  V INNER JOIN MYBCP_CTE C
        ON V.ORDINAL_POSITION = C.ORD_POS+1
        AND V.ORDINAL_POSITION > 1
        WHERE TABLE_NAME = 'xMySAMPLE_EXTRACT_NEW'
      )

      SELECT CC.TXT
      FROM MYBCP_CTE CC INNER JOIN ( SELECT MAX(ORD_POS) AS MX_CNT
                                     FROM MYBCP_CTE C
                                    ) SC
      ON CC.ORD_POS = SC.MX_CNT

现在,创建批处理文件。我创造了这个在我的Temp目录,但是我懒。

  cd\ 
  CD "C:\Program Files\Microsoft SQL Server\110\Tools\Binn"

  set buildhour=%time: =0%
  set buildDate=%DATE:~4,10%
  set backupfiledate=%buildDate:~6,4%%buildDate:~0,2%%buildDate:~3,2%%time:~0,2%%time:~3,2%%time:~6,2%

  echo %backupfiledate%
  pause

上面的代码只是创建的日期附加到文件的末尾。接下来,用图的递归CTE第一BCP语句来连接它一起。

  bcp "SELECT *  FROM [dbo].[vwxMYSAMPLE_EXTRACT_COLUMNS] OPTION (MAXRECURSION 300)" queryout C:\Temp\Col_NM%backupfiledate%.txt -c -t"|" -S MYSERVERTOLOGINTO -T -q
  bcp "SELECT *  FROM [myDBName].[dbo].[vwxMYSAMPLE_EXTRACT_NEW] " queryout C:\Temp\3316_PHYSDATA_ALL%backupfiledate%.txt -c -t"|" -S MYSERVERTOLOGINTO -T -q

现在使用复制命令合并在一起

  copy C:\Temp\Col_NM%backupfiledate%.txt  + C:\Temp\3316_PHYSDATA_ALL%backupfiledate%.txt  C:\Temp\3316_PHYSDATA_ALL%backupfiledate%.csv

所有组

SQLCMD的最新版本添加-w选项删除字段值之后额外的空间;但是,它不把字串,行情,导入包含逗号字段值时可以在CSV问题。

我根据我以前看到的一个版本。它帮助了我很多创造导出文件作为CSV或TXT。我存储一个表转换为##临时表:

    IF OBJECT_ID('tempdb..##TmpExportFile') IS NOT NULL
DROP TABLE ##TmpExportFile;


DECLARE @columnHeader VARCHAR(8000)
DECLARE @raw_sql nvarchar(3000)

SELECT
              * INTO ##TmpExportFile
              ------ FROM THE TABLE RESULTS YOU WANT TO GET
              ------ COULD BE A TABLE OR A TEMP TABLE BASED ON INNER JOINS
              ------ ,ETC.

FROM TableName -- optional WHERE ....


DECLARE @table_name  VARCHAR(50) = '##TmpExportFile'
SELECT
              @columnHeader = COALESCE(@columnHeader + ',', '') + '''[' + c.name + ']''' + ' as ' + '' + c.name + ''
FROM tempdb.sys.columns c
INNER JOIN tempdb.sys.tables t
              ON c.object_id = t.object_id
WHERE t.NAME = @table_name

print @columnheader

                DECLARE @ColumnList VARCHAR(max)
SELECT
              @ColumnList = COALESCE(@ColumnList + ',', '') + 'CAST([' + c.name + '] AS CHAR(' + LTRIM(STR(max_length)) + '))'
FROM tempdb.sys.columns c
INNER JOIN tempdb.sys.tables t
              ON c.object_id = t.object_id
WHERE t.name = @table_name
print @ColumnList

--- CSV FORMAT                                       
SELECT
              @raw_sql = 'bcp "SELECT ' + @columnHeader + ' UNION all SELECT ' + @ColumnList + ' FROM ' + @table_name + ' " queryout \\networkdrive\networkfolder\datafile.csv -c -t, /S' + ' SQLserverName /T'
--PRINT @raw_sql
EXEC xp_cmdshell @raw_sql

  --- TXT FORMAT
       SET @raw_sql = 'bcp "SELECT ' + @columnHeader + ' UNION all SELECT ' + @ColumnList + ' FROM ' + @table_name + ' " queryout \\networkdrive\networkfolder\MISD\datafile.txt /c /S'+ ' SQLserverName /T'
       EXEC xp_cmdshell @raw_sql



DROP TABLE ##TmpExportFile

我已经成功地与下面的代码实现这一点。 把下面的代码在SQL Server中新的查询窗口,并尝试

CREATE TABLE tempDBTableDetails ( TableName VARCHAR(500), [RowCount] VARCHAR(500), TotalSpaceKB VARCHAR(500),
                UsedSpaceKB VARCHAR(500), UnusedSpaceKB VARCHAR(500) )

    -- STEP 1 :: 
    DECLARE @cmd VARCHAR(4000)

INSERT INTO tempDBTableDetails
SELECT 'TableName', 'RowCount', 'TotalSpaceKB', 'UsedSpaceKB', 'UnusedSpaceKB'
INSERT INTO tempDBTableDetails
SELECT  
    S.name +'.'+ T.name as TableName, 
    Convert(varchar,Cast(SUM(P.rows) as Money),1) as [RowCount],
    Convert(varchar,Cast(SUM(a.total_pages) * 8 as Money),1) AS TotalSpaceKB, 
    Convert(varchar,Cast(SUM(a.used_pages) * 8 as Money),1) AS UsedSpaceKB, 
    (SUM(a.total_pages) - SUM(a.used_pages)) * 8 AS UnusedSpaceKB
FROM sys.tables T
INNER JOIN sys.partitions P ON P.OBJECT_ID = T.OBJECT_ID
INNER JOIN sys.schemas S ON T.schema_id = S.schema_id
INNER JOIN sys.allocation_units A ON p.partition_id = a.container_id
WHERE T.is_ms_shipped = 0 AND P.index_id IN (1,0)
GROUP BY S.name, T.name
ORDER BY SUM(P.rows) DESC

-- SELECT * FROM [FIINFRA-DB-SIT].dbo.tempDBTableDetails ORDER BY LEN([RowCount]) DESC

SET @cmd = 'bcp "SELECT * FROM [FIINFRA-DB-SIT].dbo.tempDBTableDetails ORDER BY LEN([RowCount]) DESC" queryout "D:\Milind\export.xls" -U sa -P dbowner -c'
    Exec xp_cmdshell @cmd 

--DECLARE @HeaderCmd VARCHAR(4000)
--SET @HeaderCmd = 'SELECT ''TableName'', ''RowCount'', ''TotalSpaceKB'', ''UsedSpaceKB'', ''UnusedSpaceKB'''
exec master..xp_cmdshell 'BCP "SELECT ''TableName'', ''RowCount'', ''TotalSpaceKB'', ''UsedSpaceKB'', ''UnusedSpaceKB''" queryout "d:\milind\header.xls" -U sa -P dbowner -c'
exec master..xp_cmdshell 'copy /b "d:\Milind\header.xls"+"d:\Milind\export.xls" "d:/Milind/result.xls"'

exec master..xp_cmdshell 'del "d:\Milind\header.xls"'
exec master..xp_cmdshell 'del "d:\Milind\export.xls"'

DROP TABLE tempDBTableDetails 

请在下面找到另一种方式让同样的事情。这个过程也需要在参数模式名的情况下,你需要用它来访问你的表。

CREATE PROCEDURE Export_Data_NBA
@TableName nchar(50),
@TableSchema nvarchar(50) = ''

AS
DECLARE @TableToBeExported as nvarchar(50);

DECLARE @OUTPUT TABLE (col1 nvarchar(max));
DECLARE @colnamestable VARCHAR(max);
select @colnamestable = COALESCE(@colnamestable, '') +COLUMN_NAME+ ','
from INFORMATION_SCHEMA.COLUMNS where TABLE_NAME = @TableName
order BY ORDINAL_POSITION

SELECT @colnamestable = LEFT(@colnamestable,DATALENGTH(@colnamestable)-1)

INSERT INTO @OUTPUT
select @colnamestable

DECLARE @selectstatement VARCHAR(max);
select @selectstatement = COALESCE(@selectstatement, '') + 'Convert(nvarchar(100),'+COLUMN_NAME+')+'',''+'
from INFORMATION_SCHEMA.COLUMNS where TABLE_NAME = @TableName
order BY ORDINAL_POSITION

SELECT @selectstatement = LEFT(@selectstatement,DATALENGTH(@selectstatement)-1)

DECLARE @sqlstatment as nvarchar(max);

SET @TableToBeExported = @TableSchema+'.'+@TableToBeExported

SELECT @sqlstatment = N'Select '+@selectstatement+N' from '+@TableToBeExported

INSERT INTO @OUTPUT
exec sp_executesql @stmt = @sqlstatment

SELECT * from @OUTPUT

通过一个小PowerShell脚本

sqlcmd -Q "set nocount on select top 0 * from [DB].[schema].[table]" -o c:\temp\header.txt 
bcp [DB].[schema].[table] out c:\temp\query.txt -c -T -S BRIZA
Get-Content c:\temp\*.txt | Set-Content c:\temp\result.txt
Remove-Item c:\temp\header.txt
Remove-Item c:\temp\query.txt

警告该级联遵循txt文件名称(以字母顺序)

一些解决方案在这里的是过于复杂。下面是一个具有4行代码,无批次文件,没有外部应用和所有自包含在SQL服务器。

在本例中,我的表被命名为“MyTable的”,它有一个名为column1的和列2两列。列2是整数,所以我们需要将它转换为varchar为出口:

DECLARE @FileName varchar(100)
DECLARE @BCPCommand varchar(8000)
DECLARE @ColumnHeader varchar(8000)

    SET @FileName = 'C:\Temp\OutputFile.csv'
 SELECT @ColumnHeader = COALESCE(@ColumnHeader+',' ,'')+ ''''+column_name +'''' FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME='MyTable'
    SET @BCPCommand = 'bcp "SELECT '+ @ColumnHeader +' UNION ALL SELECT Column1, CAST(Column2 AS varchar(100)) AS Column2 FROM MyTable" queryout "' + @FileName + '" -c -t , -r \n  -S . -T'
   EXEC master..xp_cmdshell @BCPCommand

您可以添加此存储过程完全自动化.csv文件(以标题行)的创建。

DECLARE @table_name varchar(max)='tableName'--which needs to be exported
DECLARE @fileName varchar(max)='file Name'--What would be file name

DECLARE @query varchar(8000)
DECLARE @columnHeader VARCHAR(max)
SELECT @columnHeader = COALESCE(@columnHeader+',' ,'')+ ''''+column_name +''''  FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = @table_name

DECLARE @ColumnList VARCHAR(max)
SELECT @ColumnList = COALESCE(@ColumnList+',' ,'')+ 'CAST('+column_name +' AS VARCHAR)' +column_name FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = @table_name

DECLARE @tempRaw_sql nvarchar(max)
SELECT @tempRaw_sql = 'SELECT ' + @ColumnList + ' into ##temp11 FROM ' + @table_name 
PRINT @tempRaw_sql
EXECUTE sp_executesql  @tempRaw_sql


DECLARE @raw_sql nvarchar(max)
SELECT @raw_sql = 'SELECT  '+ @columnHeader +' UNION ALL SELECT * FROM ##temp11'
PRINT @raw_SQL
SET @query='bcp "'+@raw_SQL+'" queryout "C:\data\'+@fileName+'.txt" -T -c -t,'
EXEC xp_cmdshell @query


DROP TABLE ##temp11
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