if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[p_CopyDb]') and OBJECTPROPERTY(id, N'IsProcedure') = 1)
drop procedure [dbo].[p_CopyDb]
GO
--得到要复制的数据库名
if isnull(@sdbname,'')='' set @sdbname=db_name()
--得到临时备份数据目录及文件名
select @bpath=rtrim(reverse(filename)) from master..sysfiles where name='master'
select @bpath=substring(@bpath,charindex('\',@bpath)+1,8000)
,@bpath=reverse(substring(@bpath,charindex('\',@bpath),8000))+'BACKUP\'
+@sdbname+'_'+convert(varchar,getdate(),112)
+'_'+replace(convert(varchar,getdate(),108),':','')
+'.bak'
--生成数据库备份语句,进行数据库备份
set @sql='backup database '+@sdbname
+' to disk='''+@bpath
+''' with NOINIT'
exec(@sql)
--根据备份文件恢复成新的数据库(完成复制工作)
set @sql='restore database '+@ddbname
+' from disk='''+@bpath+''''
+' with file=1'
+case when @overexist=1 then ',replace' else '' end
--得到数据库存放的默认目录
--得到SQL安装时设置的数据文件路径
select @rpath=rtrim(reverse(filename)) from master..sysfiles where name='master'
select @rpath=reverse(substring(@rpath,charindex('\',@rpath),8000))
--添加移动逻辑文件的处理
--从备份文件中获取逻辑文件名
declare @lfn nvarchar(128),@tp char(1),@i int
--创建临时表,保存获取的信息
create table #tb(ln nvarchar(128),pn nvarchar(260),tp char(1),fgn nvarchar(128),sz numeric(20,0),Msz numeric(20,0))
--从备份文件中获取信息
insert into #tb exec('restore filelistonly from disk='''+@bpath+'''')
declare #f cursor for select ln,tp from #tb
open #f
fetch next from #f into @lfn,@tp
set @i=0
while @@fetch_status=0
begin
select @sql=@sql+',move '''+@lfn+''' to '''+@rpath+@ddbname+cast(@i as varchar)
+case @tp when 'D' then '.mdf''' else '.ldf''' end
,@i=@i+1
fetch next from #f into @lfn,@tp
end
close #f
deallocate #f
--关闭用户进程处理
if @overexist=1 and @killuser=1
begin
declare @spid varchar(20)
declare #spid cursor for
select spid=cast(spid as varchar(20)) from master..sysprocesses where dbid=db_id(@ddbname)
open #spid
fetch next from #spid into @spid
while @@fetch_status=0
begin
exec('kill '+@spid)
fetch next from #spid into @spid
end
close #spid
deallocate #spid
end
--恢复数据库
exec(@sql)
--删除备份的临时文件
set @sql='del "'+@bpath+'"'
exec master..xp_cmdshell @sql,no_output
select @sql,@bpath,@rpath
go
--如果一定要逐个表复制,用:
use 源库
go
exec sp_msforeachtable 'select * into 目标库..? from ?'
最好的办法是用DTS(导入导出工具)做好DTS包。
--那就在查询分析器中执行这个嘛.
--如果一定要逐个表复制,用:
use 源库
go
exec sp_msforeachtable 'select * into 目标库..? from ?'
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[p_copydb]') and OBJECTPROPERTY(id, N'IsProcedure') = 1)
drop procedure [dbo].[p_copydb]
GO
--禁用约束,防止复制时的数据冲突
set @sql='declare #tbc cursor for select name,tbname=object_name(parent_obj)
from '+@n_dbname+'..sysobjects where xtype in(''C'',''F'')'
exec(@sql)
declare @name sysname,@tbname sysname
open #tbc
fetch next from #tbc into @name,@tbname
while @@fetch_status=0
begin
set @sql='alter table '+@n_dbname+'..['+@tbname+'] NOCHECK CONSTRAINT ['+@name+']'
exec(@sql)
fetch next from #tbc into @name,@tbname
end
close #tbc
--复制数据
declare @sql1 varchar(8000)
set @sql='declare #tb cursor for select a.name from '
+@o_dbname+'..sysobjects a inner join '
+@n_dbname+'..sysobjects b on a.name=b.name
where a.xtype=''U'' and b.xtype=''U'''
exec(@sql)
open #tb
fetch next from #tb into @tbname
while @@fetch_status=0
begin
select @sql1=''
,@sql='select @sql1=@sql1+'',[''+a.name+'']'' from(
select name from '+@o_dbname+'..syscolumns where id in
(select id from '+@o_dbname+'..sysobjects where name='''+@tbname+''')
) a inner join (
select name from '+@n_dbname+'..syscolumns where status<>0x80 and id in
(select id from '+@n_dbname+'..sysobjects where name='''+@tbname+''')
) b on a.name=b.name'
exec sp_executesql @sql,N'@sql1 nvarchar(4000) out',@sql1 out
select @sql1=substring(@sql1,2,8000)
exec('insert into '+@n_dbname+'..['+@tbname+']('+@sql1
+') select '+@sql1+' from '+@o_dbname+'..['+@tbname+']')
if @@error<>0
print('insert into '+@n_dbname+'..['+@tbname+']('+@sql1
+') select '+@sql1+' from '+@o_dbname+'..['+@tbname+']')
fetch next from #tb into @tbname
end
close #tb
deallocate #tb
--数据复制完成后启用约束
open #tbc
fetch next from #tbc into @name,@tbname
while @@fetch_status=0
begin
set @sql='alter table '+@n_dbname+'..['+@tbname+'] CHECK CONSTRAINT ['+@name+']'
exec(@sql)
fetch next from #tbc into @name,@tbname
end
close #tbc
deallocate #tbc
go