sql根据一个表的数据生成插入脚本

create Procedure [dbo].[sp_CreateDataLoadScript]
@TblName varchar(128)
as
/*
exec sp_CreateDataLoadScript 'MyTable'
*/

create table #a (id int identity (1,1), ColType int, ColName varchar(128))

insert #a (ColType, ColName)
select case when DATA_TYPE like '%char%' then 1 else 0 end ,
COLUMN_NAME
from information_schema.columns
where TABLE_NAME = @TblName
order by ORDINAL_POSITION

if not exists (select * from #a)
begin
raiserror('No columns found for table %s', 16,-1, @TblName)
return
end

declare @id int ,
@maxid int ,
@cmd1 varchar(7000) ,
@cmd2 varchar(7000)

select @id = 0 ,
@maxid = max(id)
from #a

select @cmd1 = 'select '' insert ' + @TblName + ' ( '
select @cmd2 = ' + '' select '' + '
while @id < @maxid
begin
select @id = min(id) from #a where id > @id

select @cmd1 = @cmd1 + ColName + ','
from #a
where id = @id

select @cmd2 = @cmd2
+ ' case when ' + ColName + ' is null '
+ ' then ''null'' '
+ ' else '
+   case when ColType = 1 then  ''''''''' + ' + ColName + ' + ''''''''' else 'convert(varchar(20),' + ColName + ')' end
+ ' end + '','' + '
from #a
where id = @id
end

select @cmd1 = left(@cmd1,len(@cmd1)-1) + ' ) '' '
select @cmd2 = left(@cmd2,len(@cmd2)-8) + ' from ' + @tblName

select '/*' + @cmd1 + @cmd2 + '*/'

exec (@cmd1 + @cmd2)
drop table #a