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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
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, nisprocedure) = 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 @fname=@tbname+.dbf
–检查文件是否已经存在
if right(@path,1)<>\ set @path=@path+\
create table #tb(a bit,b bit,c bit)
set @sql=@path+@fname
insert into #tb exec master..xp_fileexist @sql
if exists(select 1 from #tb where a=1)
if @over=1
begin
set @sql=del +@sql
exec master..xp_cmdshell @sql,no_output
end
else
set @over=0
else
set @over=1
–数据库创建语句
set @sql=@path+@fname
set @constr=provider=microsoft.jet.oledb.4.0;extended properties=”dbase 5.0;
+;hdr=no;database=+@path+”
–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 @fdlist=@fdlist+,+a.name
,@sql=@sql+,[+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 [+@fname
+](+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=
+@path+,select * from [+@fname+])
–导入数据
exec(insert into +@sql+(+@fdlist+) select +@fdlist+ from +@tbname)
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, nisprocedure) = 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 @path=@path+\
create table #tb(a bit,b bit,c bit)
set @sql=@path+@fname
insert into #tb exec master..xp_fileexist @sql
if exists(select 1 from #tb where a=1)
if @over=1
begin
set @sql=del +@sql
exec master..xp_cmdshell @sql,no_output
end
else
set @over=0
else
set @over=1
–数据库创建语句
set @sql=@path+@fname
set @constr=provider=microsoft.jet.oledb.4.0;extended properties=”dbase 5.0;
+;hdr=no;database=+@path+”
–创建表的sql
declare @tbname sysname
set @tbname=##tmp_+convert(varchar(38),newid())
set @sql=select * into [+@tbname+] from(+@sqlstr+) 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 @fdlist=@fdlist+,+a.name
,@sql=@sql+,[+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 name=@tbname)
select @sql=create table [+@fname
+](+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=
+@path+,select * from [+@fname+])
–导入数据
exec(insert into +@sql+(+@fdlist+) select +@fdlist+ from [+@tbname+])
set @sql=drop table [+@tbname+]
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
