SQL显示字段信息

SELECT 
表名=d.name,
表说明=isnull(f.value,''),
字段序号=a.colorder,
字段名=a.name,
标识=case when a.colstat=1 then '√'else '' end,
主键=case when exists(select 1 from sysindexes y,sysindexkeys z where y.id=z.id and y.indid=z.indid and z.id=a.id and z.colid=a.colid and y.status & 2948=2048) then '√'else '' end,
类型=b.name,
占用字节数=a.length,
精度=a.prec,
小数位数=isnull(a.Scale,0),
允许空=case when a.isnullable=1 then '√'else '' end,
默认值=isnull(e.text,''),
字段说明=isnull(g.[value],'')
FROM syscolumns a
left join systypes b on a.xtype=b.xusertype
inner join sysobjects d on a.id=d.id  and d.xtype='U' and d.name<>'dtproperties'
left join syscomments e on a.cdefault=e.id
left join sysproperties g on a.id=g.id and a.colid=g.smallid 
left join sysproperties f on a.id=f.id and f.smallid=0 
where d.name='T_menu'  --如果只查询指定表,加上此条件
order by a.id,a.colorder

select * from sys.extended_properties