导入/导出dBase_sqlserver

从dBase文件中,导入数据到SQL数据库中,很简单,直接用下面的语句:

/*===================================================================*/
–如果接受数据导入的表已经存在
insert into 表 select * from

http://www.gaodaima.com/35458.html导入/导出dBase_sqlserver

openrowset(‘MICROSOFT.JET.OLEDB.4.0’
,’dBase 5.0;DATABASE=c:/’,’select * from [test.dbf]’)

–如果导入数据并生成表
select * into 表 from
openrowset(‘MICROSOFT.JET.OLEDB.4.0’
,’dBase 5.0;DATABASE=c:/’,’select * from [test.dbf]’)

/*===================================================================*/
–如果从SQL数据库中,导出数据到dBase,如果dBase文件已经存在,就可以简单的用:
insert into
openrowset(‘MICROSOFT.JET.OLEDB.4.0’
,’dBase 5.0;DATABASE=c:/’,’select * from [test.dbf]’)
select * from 表

/*–说明:
DATABASE=c:/               c:/是dbf文件的存放目录
‘select * from [test.dbf]  test.dbf是指dbf文件名
–*/

–如果dBase文件不存在,就需要用到下面的存储过程了.

/*–数据导出dBase
 
 导出表中的数据到dBase,如果文件不存在,将自动创建文件
 基于通用性考虑,仅支持导出标准数据类型
–*/

/*–调用示例

 –导出dBase
 p_exporttb @tbname=’地区资料’,@path=’c:/’,@over=0
–*/
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[p_exporttb]’) and OBJECTPROPERTY(id, N’IsProcedure’) = 1)
drop procedure [dbo].[p_exporttb]
GO

create proc p_exporttb
@tbname sysname,    –要导出的表名
@path nvarchar(1000),   –文件存放目录
@fname nvarchar(250)=”,  –文件名,默认为表名
@over bit=0      –是否覆盖已经存在的文件,如果不覆盖,则直接追加
as
declare @err int,@src nvarchar(255),@desc nvarchar(255),@out int
declare @obj int,@constr nvarchar(1000),@sql varchar(8000),@fdlist varchar(8000)

–参数检测
if isnull(@fname,”)=” set @[email protected]+’.dbf’

–检查文件是否已经存在
if right(@path,1)<>’/’ set @[email protected]+’/’
create table #tb(a bit,b bit,c bit)
set @[email protected][email protected]
insert into #tb exec master..xp_fileexist @sql
if exists(select 1 from #tb where a=1)
 if @over=1
 begin
  set @sql=’del ‘[email protected]
  exec master..xp_cmdshell @sql,no_output
 end
 else
  set @over=0
else
 set @over=1

—数据库创建语句
set @[email protected][email protected]
set @cOnstr=’Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties=”dBASE 5.0;’
 +’;HDR=NO;DATABASE=’[email protected]+'”‘

–连接数据库
exec @err=sp_oacreate ‘adodb.connection’,@obj out
if @err<>0 goto lberr

exec @err=sp_oamethod @obj,’open’,null,@constr
if @err<>0 goto lberr

–创建表的SQL
select @sql=”,@fdlist=”
select @[email protected]+’,’+a.name
 ,@[email protected]+’,[‘+a.name+’] ‘
  +case when b.name in(‘char’,’nchar’,’varchar’,’nvarchar’) then
     ‘text(‘+cast(case when a.length>250 then 250 else a.length end as varchar)+’)’
   when b.name in(‘tynyint’,’int’,’bigint’,’tinyint’) then ‘int’
   when b.name in(‘smalldatetime’,’datetime’) then ‘datetime’
   when b.name in(‘money’,’smallmoney’) then ‘money’
   else b.name end
FROM syscolumns a left join systypes b on a.xtype=b.xusertype
where b.name not in(‘image’,’text’,’uniqueidentifier’,’sql_variant’,’ntext’,’varbinary’,’binary’,’timestamp’)
 and object_id(@tbname)=id
select @sql=’create table [‘[email protected]
 +’](‘+substring(@sql,2,8000)+’)’
 ,@fdlist=substring(@fdlist,2,8000)

if @over=1
begin
 exec @err=sp_oamethod @obj,’execute’,@out out,@sql
 if @err<>0 goto lberr
end

exec @err=sp_oadestroy @obj

set @sql=’openrowset(”MICROSOFT.JET.OLEDB.4.0”,”dBase 5.0;DATABASE=’
 [email protected]+”’,”select * from [‘[email protected]+’]”)’

–导入数据
exec(‘insert into ‘[email protected]+'(‘[email protected]+’) select ‘[email protected]+’ from ‘[email protected])

return

lberr:
 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

/*–数据导出dBase
 
 导出查询语句中的数据到dBase,如果文件不存在,将自动创建文件
 基于通用性考虑,仅支持导出标准数据类型
–*/

/*–调用示例

 –导出dBase
 p_exporttb @sqlstr=’select * from 地区资料’,@path=’c:/’,@over=1
–*/

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[p_exporttb]’) and OBJECTPROPERTY(id, N’IsProcedure’) = 1)
drop procedure [dbo].[p_exporttb]
GO

create proc p_exporttb
@sqlstr varchar(8000),   –要导出的查询名
@path nvarchar(1000),   –文件存放目录
@fname nvarchar(250)=’temp.dbf’,–文件名,默认为temp
@over bit=0      –是否覆盖已经存在的文件,如果不覆盖,则直接追加
as
declare @err int,@src nvarchar(255),@desc nvarchar(255),@out int
declare @obj int,@constr nvarchar(1000),@sql varchar(8000),@fdlist varchar(8000)

–参数检测
if isnull(@fname,”)=” set @fname=’temp.dbf’

–检查文件是否已经存在
if right(@path,1)<>’/’ set @[email protected]+’/’
create table #tb(a bit,b bit,c bit)
set @[email protected][email protected]
insert into #tb exec master..xp_fileexist @sql
if exists(select 1 from #tb where a=1)
 if @over=1
 begin
  set @sql=’del ‘[email protected]
  exec master..xp_cmdshell @sql,no_output
 end
 else
  set @over=0
else
 set @over=1

–数据库创建语句
set @[email protected][email protected]
set @cOnstr=’Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties=”dBASE 5.0;’
 +’;HDR=NO;DATABASE=’[email protected]+'”‘

–创建表的SQL
declare @tbname sysname
set @tbname=’##tmp_’+convert(varchar(38),newid())
set @sql=’select * into [‘[email protected]+’] from(‘[email protected]+’) a’
exec(@sql)

–连接数据库
exec @err=sp_oacreate ‘adodb.connection’,@obj out
if @err<>0 goto lberr

exec @err=sp_oamethod @obj,’open’,null,@constr
if @err<>0 goto lberr

–创建表的SQL
select @sql=”,@fdlist=”
select @[email protected]+’,’+a.name
 ,@[email protected]+’,[‘+a.name+’] ‘
  +case when b.name in(‘char’,’nchar’,’varchar’,’nvarchar’) then
     ‘text(‘+cast(case when a.length>250 then 250 else a.length end as varchar)+’)’
   when b.name in(‘tynyint’,’int’,’bigint’,’tinyint’) then ‘int’
   when b.name in(‘smalldatetime’,’datetime’) then ‘datetime’
   when b.name in(‘money’,’smallmoney’) then ‘money’
   else b.name end
FROM tempdb..syscolumns a left join tempdb..systypes b on a.xtype=b.xusertype
where b.name not in(‘image’,’text’,’uniqueidentifier’,’sql_variant’,’ntext’,’varbinary’,’binary’,’timestamp’)
 and a.id=(select id from tempdb..sysobjects where [email protected])
select @sql=’create table [‘[email protected]
 +’](‘+substring(@sql,2,8000)+’)’
 ,@fdlist=substring(@fdlist,2,8000)

if @over=1
begin
 exec @err=sp_oamethod @obj,’execute’,@out out,@sql
 if @err<>0 goto lberr
end

exec @err=sp_oadestroy @obj

set @sql=’openrowset(”MICROSOFT.JET.OLEDB.4.0”,”dBase 5.0;DATABASE=’
 [email protected]+”’,”select * from [‘[email protected]+’]”)’

–导入数据
exec(‘insert into ‘[email protected]+'(‘[email protected]+’) select ‘[email protected]+’ from [‘[email protected]+’]’)

set @sql=’drop table [‘[email protected]+’]’
exec(@sql)

return

lberr:
 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

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