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,

      (case when b.name='nvarchar' then b.name+'('+convert(nvarchar(100),columnproperty(a.id,a.name,'PRECISION'))+')' else b.name end) 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 '是'else '否' 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 sys.extended_properties g

on a.id=g.major_id AND a.colid = g.Minor_id

--where a.name!='Id' and a.name!='CreatedAt'and a.name!='LastModifiedAt'

--order by d.name,a.id,a.colorder