MSSQL從文件導入數據

alter procedure [dbo].[File2Table2] 
@servername varchar(200)  --服务器名 
,@username varchar(200)   --用户名,如果用NT验证方式,则为空'' 
,@password varchar(200)   --密码 
,@tbname nvarchar(500)   --数据库.dbo.表名,如果不指定:.dbo.表名,则导出数据库的所有用户表 
,@filename nvarchar(1000)  --导入/导出路径/文件名,如果@tbname参数指明是导出整个数据库,则这个参数是文件存放路径,文件名自动用表名.txt 
,@isout bit      --1为导出,0为导入 
as 
declare @sql nvarchar(4000) 

if @tbname like '%.%.%' --如果指定了表名,则直接导出单个表 
begin 
 set @sql=N'BULK INSERT '+@tbname
 +N' FROM '''+@filename+''''
 +N'WITH
 ( 
   FIELDTERMINATOR = ''|'',
   ROWTERMINATOR = ''|\n''
 )'
 exec sp_executesql @sql
end 
else 
begin --导出整个数据库,定义游标,取出所有的用户表 
 declare @m_tbname nvarchar(250) 
 if right(@filename,1)<>'\' set @filename=@filename+'\' 

 set @m_tbname='declare #tb cursor for select name from '+@tbname+'..sysobjects where xtype=''U''' 
 exec(@m_tbname) 
 open #tb 
 fetch next from #tb into @m_tbname 
 while @@fetch_status=0 
 begin 
  set @sql=N'BULK INSERT '+@m_tbname
  +N' FROM '''+@filename+@m_tbname+'.txt'''
  +N' WITH
  ( 
    FIELDTERMINATOR = ''|'',
    ROWTERMINATOR = ''|\n''
  )'
  print @sql
  exec sp_executesql @sql 
  fetch next from #tb into @m_tbname 
 end 
 close #tb 
 deallocate #tb  
end