显示表结构的SQL

select
表名=case when a.colorder=1 then d.name else '' end,
表说明=case when a.colorder=1 then isnull(f.value,'') 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.xusertype=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 d.id=f.id and f.smallid=0
--where d.name='要查询的表' --如果只查询指定表,加上此条件
order by a.id,a.colorder