sqlserver 查询数据库中所有表的metadata-尊龙凯时

select 
    (case when a.colorder=1 then d.name else '' end) 表名,
    a.colorder 字段序号,
    a.name 字段名,
    (case when columnproperty( a.id,a.name,'isidentity')=1 then '√'else '' end) 标识,
    (case when (select count(*) 
                from sysobjects 
                where (name in (select name
                                from sysindexes
                                where (id = a.id) and (indid in (select indid
                                                                 from sysindexkeys
                                                                 where (id = a.id) and (colid in (select colid
                                                                                                  from syscolumns
                                                                                                  where (id = a.id) and (name = a.name)
                                                                                                  )
                                                                                        )
                                                                )
                                                        )
                                )
                        ) and (xtype = 'pk') 
                ) > 0 then '√' else '' end) 主键,
    b.name 类型,
    a.length 占用字节数,
    columnproperty(a.id,a.name,'precision') as 长度,
    isnull(columnproperty(a.id,a.name,'scale'),0) as 小数位数,
    (case when a.isnullable=1 then '√'else '' end) 允许空,
    isnull(e.text,'') 默认值,
    isnull(g.[value],'') as 字段说明    
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