string tmpTable = table_name.Text.ToString(); //收到下载的表名
string tmpSavePath = Server.MapPath("../") + "DataChageFile\\"; //保存的路径
string tmpExcel = "TmpExcel" + DateTime.Now.ToString().Replace("-", "").Replace(" ", "").Replace(":", "") + ".xls"; //生成的临时EXCEL文件名
string tmpSheet = "Tmp" + DateTime.Now.ToString().Replace("-", "").Replace(" ", "").Replace(":", ""); //生成临时的EXCEL表名
if (tmpTable == "")
{
Response.Write("<script Language=javascript>alert('请输入表名!');history.back()</script>");
}
else
{
SqlConnection conn = mmsdb.conn(); conn.Open();
string sql = "declare @sql varchar(8000)set @sql = 'select top 100 * from " + tmpTable + "'Exec H_SqlToExcel '" + tmpSavePath + "','" + tmpExcel + "','" + tmpSheet + "',@sql";
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.ExecuteNonQuery();
conn.Close(); conn = null;
}
Response.Redirect("..\\DataChageFile\\" + tmpExcel); //下载文件
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[H_SqlToExcel]') and OBJECTPROPERTY(id, N'IsProcedure') = 1)
drop procedure [dbo].[H_SqlToExcel]
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO
CREATE PROC H_SqlToExcel
(
@Path varchar(100),--文件存放路径
@Fname varchar(100),--文件名字
@SheetName varchar(80),---工作表名字
@SqlStr varchar(8000)--查询语句,如果查询语句中使用了order by ,请加上top 100 percent,注意,如果导出表/视图,用上面的存储过程
)
AS
SET NOCOUNT ON
declare @sql varchar(8000)
declare @obj int--OLE对象
declare @constr varchar(8000)
declare @err int
declare @out int
declare @fdlist varchar(8000)
declare @tbname sysname--临时表
declare @Src nvarchar(200)
declare @Desc nvarchar(200)
set @tbname='##tmp_'+convert(varchar(38),newid())
exec('select * into ['+@tbname +'] from '+'('+@sqlStr+') A')
select @fdlist = ''
set @sql= @path+@fname
set @constr='DRIVER={Microsoft Excel Driver (*.xls)};DSN='''';READONLY=FALSE'
+';CREATE_DB="'+@sql+'";DBQ='+@sql
--生成Excel的列
set @sql = ''
select @sql = @sql+','+'['+a.name+'] '+ case when b.name like '%char' then case when a.length >255 then 'memo' else 'text('+cast(a.length as varchar)+')' end
when b.name like '%int' or b.name='bit' then 'int'
when b.name like '%datetime' then 'datetime'
when b.name like '%money' then 'money'
when b.name like '%text' then 'memo'
else b.name
end,
@fdlist = @fdlist+','+'['+a.name+']'
from tempdb..syscolumns a join tempdb..systypes b on a.xtype = b.xusertype
where b.name not in('image','uniqueidentifier','sql_variant','varbinary','binary','timestamp')
and id in(select id from tempdb..sysobjects where name = @tbname) order by colorder
if @@rowcount=0 return
set @fdlist = substring(@fdlist,2,8000)
--连接数据库
exec @err=sp_oacreate 'adodb.connection',@obj out
if @err <> 0 goto lberror
exec @err=sp_oamethod @obj,'open',null,@constr
if @err <> 0 goto lberror
--创建工作薄
select @sql='create table ['+@sheetname
+']('+substring(@sql,2,8000)+')'
exec @err=sp_oamethod @obj,'execute',@out out,@sql--@sql为excute方法提供参数
if @err <> 0 goto lberror
exec @err=sp_oadestroy @obj
--导入数据
set @sql='openrowset(''MICROSOFT.JET.OLEDB.4.0'',''Excel 8.0;HDR=YES
;DATABASE='+@path+@fname+''',['+@sheetname+'$])'
--print @sql
exec ('insert into '+@sql+'('+@fdlist+') select '+@fdlist+' from ['+@tbname+']')
exec('drop table ['+@tbname+']')
return
lberror:
exec sp_oageterrorinfo 0,@src out,@desc out
lbexit:
select cast(@err as varbinary(4)) as 错误号
,@src as 错误源,@desc as 错误描述
select @sql,@constr,@fdlist
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO