select
(case when a.colorder=1 then d.name else '' end) as 表名,
a.colorder as 字段序號,
a.name as 欄位名,
(case when columnproperty(a.id,a.name,'isidentity')=1 then '√' else '' end) as 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) as 主鍵,
b.name as 型別,
a.length as 占用位元組數,
columnproperty(a.id,a.name,'precision') as 長度,
isnull(columnproperty(a.id,a.name,'scale'),0) as 小數字數,
(case when a.isnullable=1 then '√' else '' end) as 允許空,
isnull(e.text,'') as 預設值,
isnull(g.[value],'') as 字段說明
from syscolumns a
left join systypes b on a.xtype=b.usertype
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 d.name='com_sequence'
order by a.id,a.colorder
上面的比較複雜，下面是簡化過的
select
(case when a.colorder=1 then d.name else '' end) as tablename,
a.name as fieldname,
isnull(g.[value],'') as fielddes
from syscolumns a
inner join sysobjects d on a.id=d.id and d.xtype='u' and d.name<>'dtproperties'
left join sys.extended_properties g on a.id=g.major_id and a.colid =g.minor_id
--where d.name='' --要查詢的表
order by a.id,a.colorder
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