获取、增加、修改、删除sqlserver字段描述

/************************************************************
 * Code formatted by SoftTree sql Assistant ?v5.0.97
 * Time: 2013-3-4 13:28:08
 ************************************************************/

--获取、增加、修改、删除sqlserver字段描述

SELECT o.name AS tableName,c.name AS columnName,p.[value] AS DESCRIPTION
FROM   sysproperties p
       INNER JOIN sysobjects o
            ON  o.id = p.id
       INNER JOIN syscolumns c
            ON  p.id = c.id
            AND p.smallid = c.colid
WHERE  (p.name = 'MS_Description')
       AND (c.name = 'province')
       AND (o.name = 'ip_address')
ORDER BY
       o.name 
--选取表ip_address中 字段province的描述 
--创建表及描述信息 
CREATE TABLE 表
(
	a1  VARCHAR(10),a2  CHAR(2)
) 
--为表添加描述信息 
EXECUTE sp_addextendedproperty 'MS_Description','人员信息表','user','dbo','table','表',NULL,NULL 
--为字段a1添加描述信息 
EXECUTE sp_addextendedproperty 'MS_Description','姓名','column','a1'

EXECUTE sp_addextendedproperty 'MS_Description','测试','HR_Employees','test' 
--为字段a2添加描述信息 
EXECUTE sp_addextendedproperty 'MS_Description','性别','a2' 
--更新表中列a1的描述属性： 
EXEC sp_updateextendedproperty 'MS_Description','字段1',dbo,a1 
--删除表中列a1的描述属性： 
EXEC sp_dropextendedproperty 'MS_Description',a1 
--删除测试 
DROP TABLE