查詢某一張表所有字段的數據類型以及字段長度

語句如下：

select o.name as 表名, c.name as 字段名稱, t.name as 字段類型, c.length as 字段長度 
from 
syscolumns c inner join 
sysobjects o on c.id = o.id and o.xtype = 'u' inner join 
systypes t on c.xtype = t.xtype

where o.name = 'hnjb_ysks'（表名）