SQL根據表格構及資料產生Insert語名

declare @tablename varchar(256)

set @tablename='yp_drugname'

declare @sql varchar(8000)
declare @sqlValues varchar(8000)
set @sql =' ('
set @sqlValues = 'values (''+'
select @sqlValues = @sqlValues + cols + ' + '','' + ' ,@sql = @sql + '[' + [name] + '],' 
from 
(select case 
when xtype in (48,52,56,59,60,62,104,106,108,122,127) 
then 'case when '+ [name] +' is null then ''NULL'' else ' + 'cast('+ [name] + ' as varchar)'+' end'
when xtype in (58,61)
then 'case when '+ [name] +' is null then ''NULL'' else '+''''''''' + ' + 'cast('+ [name] +' as varchar)'+ '+'''''''''+' end'
when xtype in (167)
then 'case when '+ [name] +' is null then ''NULL'' else '+''''''''' + ' + 'replace('+ [name]+','''''''','''''''''''')' + '+'''''''''+' end'
when xtype in (231)
then 'case when '+ [name] +' is null then ''NULL'' else '+'''N'''''' + ' + 'replace('+ [name]+','''''''','''''''''''')' + '+'''''''''+' end'
when xtype in (175)
then 'case when '+ [name] +' is null then ''NULL'' else '+''''''''' + ' + 'cast(replace('+ [name]+','''''''','''''''''''') as Char(' + cast(length as varchar) + '))+'''''''''+' end'
when xtype in (239)
then 'case when '+ [name] +' is null then ''NULL'' else '+'''N'''''' + ' + 'cast(replace('+ [name]+','''''''','''''''''''') as Char(' + cast(length as varchar) + '))+'''''''''+' end' else '''NULL'''
end as Cols,[name] from syscolumns where id = object_id(@tablename) 
) T 
set @sql ='select ''INSERT INTO ['+ @tablename + ']' + left(@sql,len(@sql)-1)+') ' + left(@sqlValues,len(@sqlValues)-4) + ')'' from '+@tablename
exec(@sql)

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