SQL Server表和欄位的說明

1. 增加欄位說明EXEC sp_addextendedproperty
    'MS_Description',
    'some description',
    'user',
     dbo,
    'table',
     table_name,
    'column',
     column_name

• Some Description ， 是要增加的說明內容
• table_name, 是表名
• column_name , 是欄位名

2. 增加表的說明EXEC sp_addextendedproperty
    'MS_Description',
    'some description',
    'user',
     dbo,
    'table',
     table_name 參數說明同上 3. 取得欄位說明內容  

SQL Server 2000

SQL Server 2005 ( 包括 express)

SELECT     [Table Name] = i_s.TABLE_NAME,     [Column Name] = i_s.COLUMN_NAME,     [Description] = s.value FROM     INFORMATION_SCHEMA.COLUMNS i_s LEFT OUTER JOIN     sysproperties s ON     s.id = OBJECT_ID(i_s.TABLE_SCHEMA+'.'+i_s.TABLE_NAME)     AND s.smallid = i_s.ORDINAL_POSITION     AND s.name = 'MS_Description' WHERE     OBJECTPROPERTY(OBJECT_ID(i_s.TABLE_SCHEMA+'.'+i_s.TABLE_NAME), 'IsMsShipped')=0     -- AND i_s.TABLE_NAME = 'table_name' ORDER BY     i_s.TABLE_NAME, i_s.ORDINAL_POSITION

SELECT     [Table Name] = OBJECT_NAME(c.object_id),     [Column Name] = c.name,     [Description] = ex.value FROM     sys.columns c LEFT OUTER JOIN     sys.extended_properties ex ON     ex.major_id = c.object_id     AND ex.minor_id = c.column_id     AND ex.name = 'MS_Description' WHERE     OBJECTPROPERTY(c.object_id, 'IsMsShipped')=0     -- AND OBJECT_NAME(c.object_id) = 'your_table' ORDER     BY OBJECT_NAME(c.object_id), c.column_id

4. 取得表說明  

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 FROM syscolumns a        inner join sysobjects d           on a.id = d.id              and d.xtype = 'U'              and d.name <> 'sys.extended_properties'        left join sys.extended_properties   f          on a.id = f.major_id             and f.minor_id = 0 Where (case when a.colorder = 1 then d.name else '' end) <>''

 

 

 

SELECT

        (case when a.colorder=1 then d.name else '' end) 表名,        a.colorder 欄位序號,        a.name 欄位名,       g.[value] AS 欄位說明FROM syscolumns a left join systypes bon a.xtype=b.xusertypeinner join sysobjects don a.id=d.id and d.xtype='U' and d.name<>'dtproperties'left join sys.extended_properties gon a.id=g.major_id AND a.colid = g.minor_idWHERE d.[name] <>'table_desc' --你要查看的表名，注釋掉，查看當前資料庫所有表的欄位資訊order by a.id,a.colorder

--建立表及描述資訊

create   table   表(a1   varchar(10),a2   char(2))

--為表添加描述資訊
EXECUTE   sp_addextendedproperty   N'MS_Description',   '人員資訊表',   N'user',   N'dbo',   N'table',   N'表',   NULL,   NULL

--為欄位a1添加描述資訊
EXECUTE   sp_addextendedproperty   N'MS_Description',   '姓名',   N'user',   N'dbo',   N'table',   N'表',   N'column',   N'a1'

--為欄位a2添加描述資訊
EXECUTE   sp_addextendedproperty   N'MS_Description',   '性別',   N'user',   N'dbo',   N'table',   N'表',   N'column',   N'a2'
--更新表中列a1的描述屬性：
EXEC   sp_updateextendedproperty   'MS_Description','欄位1','user',dbo,'table','表','column',a1

--刪除表中列a1的描述屬性：
EXEC   sp_dropextendedproperty   'MS_Description','user',dbo,'table','表','column',a1

--刪除測試
drop   table   表