sql server 獲取數據字段（表的字段和類型信息）

獲取數據字段（表的字段和類型信息）

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, 
字段名=a.name, 
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 name in (
  SELECT name FROM sysindexes WHERE indid in(
   SELECT indid FROM sysindexkeys WHERE id = a.id AND colid=a.colid 
   ))) then '√' else '' end, 
類型=b.name, 
占用字節數=a.length, 
長度=COLUMNPROPERTY(a.id,a.name,'PRECISION'), 
小數位數=isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0), 
允許空=case when a.isnullable=1 then '√'else '' end, 
默認值=isnull(e.text,''), 
字段說明=isnull(g.[value],'') 
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 
left join sys.extended_properties f on d.id=f.major_id and f.minor_id =0 
--where d.name='要查詢的表' --如果只查詢指定表,加上此條件   
order by a.id,a.colorder