用SQL语句得到SQLServer 的表中的列的描述值

 select   case   when   c.colid=1   then   object_name(c.id)   else   ''   end   as   表名    
  ,c.name   as   字段名  
  ,t.name   数据类型  
  ,c.prec   as   长度  
  ,p.value   as   描述信息  
  ,m.text   as   默认值  
  from   syscolumns   c  
  inner   join   systypes   t   on   c.xusertype=t.xusertype  
  left   join   sysproperties   p   on   c.id=p.id   and   c.colid   =   p.smallid  
  left   join   syscomments   m   on   c.cdefault=m.id  
  where   objectproperty(c.id,'IsUserTable')=1