sql server根据表中数据生成insert语句

-- ======================================================
--根据表中数据生成insert语句的存储过程
--建立存储过程，执行spGenInsertSQL 表名
--感谢playyuer
----感谢szyicol
-- ======================================================
CREATE   proc [dbo].[spGenInsertSQL] 
(@tablename varchar(256))
as
begin
  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
  --print @sql
  exec (@sql)
end

-- ======================================================
--根据表中数据生成insert语句的存储过程
--建立存储过程，执行proc_insert 表名
--感谢Sky_blue
--感谢szyicol
-- ======================================================
CREATE proc [dbo].[proc_insert] (@tablename varchar(256))
as
begin
       set nocount on
       --declare @tablename varchar(256)
       --set @tablename = 'AD'
       declare @sqlstr varchar(4000)
       declare @sqlstr1 varchar(4000)
       declare @sqlstr2 varchar(4000)
       select @sqlstr='select ''insert '+@tablename
 
       select @sqlstr1=''
       select @sqlstr2=' ('
       select @sqlstr1= ' values ( ''+'
       select @sqlstr1=@sqlstr1+col+'+'',''+' ,@sqlstr2=@sqlstr2+ '[' + name + ']' +',' from (select case 
--     when a.xtype =173 then 'case when '+a.name+' is null then ''NULL'' else '+'convert(varchar('+convert(varchar(4),a.length*2+2)+'),'+a.name +')'+' end'
       when a.xtype =104 then 'case when ['+a.name+'] is null then ''NULL'' else '+'convert(varchar(1),['+a.name +'])'+' end'
       when a.xtype =175 then 'case when ['+a.name+'] is null then ''NULL'' else '+'''''''''+'+'replace(['+a.name+'],'''''''','''''''''''')' + '+'''''''''+' end'
       when a.xtype =61  then 'case when ['+a.name+'] is null then ''NULL'' else '+'''''''''+'+'convert(varchar(23),['+a.name +'],121)'+ '+'''''''''+' end'
       when a.xtype =106 then 'case when ['+a.name+'] is null then ''NULL'' else '+'convert(varchar('+convert(varchar(4),a.xprec+2)+'),['+a.name +'])'+' end'
       when a.xtype =62  then 'case when ['+a.name+'] is null then ''NULL'' else '+'convert(varchar(23),['+a.name +'],2)'+' end'
       when a.xtype =56  then 'case when ['+a.name+'] is null then ''NULL'' else '+'convert(varchar(11),['+a.name +'])'+' end'
       when a.xtype =60  then 'case when ['+a.name+'] is null then ''NULL'' else '+'convert(varchar(22),['+a.name +'])'+' end'
       when a.xtype =239 then 'case when ['+a.name+'] is null then ''NULL'' else '+'''''''''+'+'replace(['+a.name+'],'''''''','''''''''''')' + '+'''''''''+' end'
       when a.xtype =108 then 'case when ['+a.name+'] is null then ''NULL'' else '+'convert(varchar('+convert(varchar(4),a.xprec+2)+'),['+a.name +'])'+' end'
       when a.xtype =231 then 'case when ['+a.name+'] is null then ''NULL'' else '+'''''''''+'+'replace(['+a.name+'],'''''''','''''''''''')' + '+'''''''''+' end'
       when a.xtype =59  then 'case when ['+a.name+'] is null then ''NULL'' else '+'convert(varchar(23),['+a.name +'],2)'+' end'
       when a.xtype =58  then 'case when ['+a.name+'] is null then ''NULL'' else '+'''''''''+'+'convert(varchar(23),['+a.name +'],121)'+ '+'''''''''+' end'
       when a.xtype =52  then 'case when ['+a.name+'] is null then ''NULL'' else '+'convert(varchar(12),['+a.name +'])'+' end'
       when a.xtype =122 then 'case when ['+a.name+'] is null then ''NULL'' else '+'convert(varchar(22),['+a.name +'])'+' end'
       when a.xtype =48  then 'case when ['+a.name+'] is null then ''NULL'' else '+'convert(varchar(6),['+a.name +'])'+' end'
--     when a.xtype =165 then 'case when '+a.name+' is null then ''NULL'' else '+'convert(varchar('+convert(varchar(4),a.length*2+2)+'),'+a.name +')'+' end'
       when a.xtype =167 then 'case when ['+a.name+'] is null then ''NULL'' else '+'''''''''+'+'replace(['+a.name+'],'''''''','''''''''''')' + '+'''''''''+' end'
       else '''NULL'''
       end as col,a.colid,a.name
       from syscolumns a where a.id = object_id(@tablename) and a.xtype <>189 and a.xtype <>34 and a.xtype <>35 and  a.xtype <>36
       )t order by colid
       select @sqlstr=@sqlstr+left(@sqlstr2,len(@sqlstr2)-1)+') '+left(@sqlstr1,len(@sqlstr1)-3)+')'' from '+@tablename
       --print @sqlstr
       exec( @sqlstr)
       set nocount off
end