获取所有的默认值列表

获取所有的默认值列表

select
object_name(c.id) as 表名
 ,c.name as 字段名
 ,t.name as 数据类型
 ,c.prec as 长度
 ,p.value as 字段说明
 ,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

研究了很久 终于搞定了

获取单个字段的默认值列表

select
object_name(c.id) as 表名
 ,c.name as 字段名
 ,t.name as 数据类型
 ,c.prec as 长度
 ,p.value as 字段说明
 ,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
 and object_name(c.id) = 'T_good' and c.name = 'ishot'