查詢SQL Server資料庫所有表字段備註

select 

表名 = case when a.colorder=1 then d.name else '' end,
表說明 = case when a.colorder=1 then isnull(f.value,'') else '' end,
字段序號 = a.colorder,
欄位名 = a.name,
字段說明 = isnull(g.[value],''),
型別 = b.name,
占用位元組數 = a.length,
長度 = columnproperty(a.id,a.name,'precision'),
標識 = case when columnproperty( a.id,a.name,'isidentity')=1 then '√'else '' end,
主鍵 = case when exists(select 1 from sysobjects where xtype='pk' and parent_obj=a.id 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,
小數字數 = isnull(columnproperty(a.id,a.name,'scale'),0),
允許空 = case when a.isnullable=1 then '√'else '' end,
預設值 = isnull(e.text,'')
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 
sys.extended_properties g 
on a.id=g.major_id and a.colid=g.minor_id 
left join
sys.extended_properties f
on d.id=f.major_id and f.minor_id=0
--where d.name in ( 'tablename1','tablename2') --如果只查詢指定表,加上此紅色where條件，tablename是要查詢的表名；去除紅色where條件查詢說有的表資訊
order by a.id,a.colorder

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