-- ======================================================

--列出SQL SERVER 所有表，字段名，主鍵，類型，長度，小數位數等信息

--在查詢分析器里運行即可,可以生成一個表，導出到Excel中

-- ======================================================

SELECT

       (case when a.colorder=1 then d.name else '' end)表名,

       a.colorder 字段序號,

       a.name 字段名,

       (case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' end) 標識,

       (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) 主鍵,

       b.name 類型,

       a.length 占用字節數,

       COLUMNPROPERTY(a.id,a.name,'PRECISION') as 長度,

       isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0) as 小數位數,

       (case when a.isnullable=1 then '√'else '' end) 允許空,

       isnull(e.text,'') 默認值,

       isnull(g.[value],'') AS 字段說明   

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