查询数据库中,表结构的详细信息-数据库专栏,SQL Server

select
 表名=case when a.colorder=1 then d.name else end,
 字段序号=a.colorder,
 字段名=a.name,
 标识=case when columnproperty( a.id,a.name,isidentity)=1 then √else end,
 主键=case when exists(select 1 from sysobjects where xtype=pk and name in (
  select name from sysindexes where indid in(
   select indid from sysindexkeys where id = a.id and colid=a.colid
  ))) then √ else end,
 类型=b.name,
 占用字节数=a.length,
 长度=columnproperty(a.id,a.name,precision),
 小数位数=isnull(columnproperty(a.id,a.name,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 
order by a.id,a.colorder