点滴积累【other】---存储过程修改表的所有字段（sql）

 USE [QG_Mis24]
 GO
 /****** Object:  StoredProcedure [dbo].[p_set]    Script Date: 07/11/2013 17:05:38 ******/
 SET ANSI_NULLS ON
 GO
 SET QUOTED_IDENTIFIER ON
 GO
  ALTER procedure [dbo].[p_set]
  as
  declare tb cursor for
  SELECT sql='alter table ['+d.name   +'] alter column bgdlx Varchar(64) '
  FROM syscolumns a left join systypes b on a.xtype=b.xusertype
  inner join sysobjects d on a.id=d.id and a.name like '%bgdlx%' and a.length =10
  order by d.name,a.name   declare @sql varchar(1000)
  open tb   fetch next from tb into @sql   while @@fetch_status = 0
  begin   print @sql
  exec(@SQL)  fetch next from tb into @sql
  end
  close tb
  deallocate tb