Question

我正在Microsoft Windows 10上使用SQL Server 2017 Express版。我想一次将目录中的所有文本文件导入数据库。我的想法是，SQL Server遍历该目录中的文件并同时将它们全部导入。有什么办法可以做到这一点？

最好的问候

Answer 1

declare @dir varchar(1000) = 'C:\Temp';
declare @command varchar(1000);
declare @files table (id int identity, filename varchar(1000));

set @command = 'dir /b ' + @dir;
insert into @files execute xp_cmdshell @command;

declare commands cursor for 
    select 'bulk insert <your table name here> from ''' + @dir + '\' + filename + ''' <other options, WITH FORMAT, etc. here>;' from @files;
open commands;
fetch commands into @command;
while (@@fetch_status = 0) begin
    --print @command;
    execute(@command);
    fetch commands into @command;
end;
close commands;
deallocate commands;

修改@dir和正在构建的大容量插入命令，您已完成。

您可能必须启用'xp_cmdshell'，这对于您的DBA可能是个问题；并且使用“执行”始终是一个潜在的问题（SQL注入等）。

启用xp_cmdshell：

-- To allow advanced options to be changed.  
EXEC sp_configure 'show advanced options', 1;  
GO  
-- To update the currently configured value for advanced options.  
RECONFIGURE;  
GO  
-- To enable the feature.  
EXEC sp_configure 'xp_cmdshell', 1;  
GO  
-- To update the currently configured value for this feature.  
RECONFIGURE;  
GO

Answer 2

如另一个答案中所述，function readdirAsync(path) { return new Promise((resolve, reject) => { fs.readdir(path, (err, result) => { if (err) { reject(err); } else { resolve(result); } }); }).then(res => { const versions = res.map(filename => match(/^[\d]+(\.+\d+)+/g, filename)[0]); return versions; }); } async function getVersions() { const final = await readdirAsync(require('path').join('src/versions/')); return final; } const versionsList = getVersions().then(res => res); console.log(versionsList);是有问题的。 SQL Server 2016+允许另一种方法。参见示例

xp_commandshell

将多个文本文件导入SQL Server

2 个答案: