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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