sql获取表的所有字段及属性

select
c.name as name,t.name as type
,convert(bit,c.IsNullable)  as isNULL
,convert(bit,case when exists(select 1 from sysobjects where xtype='PK' and parent_obj=c.id and name in (
select name from sysindexes where indid in(
select indid from sysindexkeys where id = c.id and colid=c.colid))) then 1 else 0 end)
as isKey
,convert(bit,COLUMNPROPERTY(c.id,c.name,'IsIdentity')) as isIdentity

,COLUMNPROPERTY(c.id,c.name,'PRECISION') as length
,ISNULL(CM.text,'') as defualtVal
,isnull(ETP.value,'') AS describe
--,ROW_NUMBER() OVER (ORDER BY C.name) AS [Row]
from syscolumns c
inner join systypes t on c.xusertype = t.xusertype
left join sys.extended_properties ETP on ETP.major_id = c.id and ETP.minor_id = c.colid and ETP.name ='MS_Description'
left join syscomments CM on c.cdefault=CM.id
where c.id = object_id('表名')

select * from sys.all_objects where type='U'