最近在研究公文流转定义的相关资料,从网上下载了一个带源码的系统,埋头分解研究,后来顺着代码找到了SQL视图部分,居然发现是加密的,以前一直没注意这个问题,想把它解出来。为了比较好的说明问题先来加密下SQL视图。view plaincopy to clipboardprint?
--如下的视图创建语句,这个创建的视图是不加加密的
CREATE VIEW dbo.V_MapManagePower
AS
SELECT dbo.ManageUser.ManageUserID, dbo.ManageUser.ManageUserName,
dbo.ManageUser.ManageUserLock, dbo.ManageGroup.ManageGroupID,
dbo.ManageGroup.ManageGroupName
FROM dbo.ManageGroup INNER JOIN
dbo.ManagePowerConfig ON
dbo.ManageGroup.ManageGroupID = dbo.ManagePowerConfig.ManageGroupID INNER
JOIN
dbo.ManageUser ON
dbo.ManagePowerConfig.ManageUserID = dbo.ManageUser.ManageUserID
--如下的视图创建语句,这个创建的视图是不加加密的
CREATE VIEW dbo.V_MapManagePower
AS
SELECT dbo.ManageUser.ManageUserID, dbo.ManageUser.ManageUserName,
dbo.ManageUser.ManageUserLock, dbo.ManageGroup.ManageGroupID,
dbo.ManageGroup.ManageGroupName
FROM dbo.ManageGroup INNER JOIN
dbo.ManagePowerConfig ON
dbo.ManageGroup.ManageGroupID = dbo.ManagePowerConfig.ManageGroupID INNER
JOIN
dbo.ManageUser ON
dbo.ManagePowerConfig.ManageUserID = dbo.ManageUser.ManageUserIDview plaincopy to clipboardprint?
--这个创建的视图语句就比上面的多了with encryption,结果再去看视图设计的时候就加密了
CREATE VIEW dbo.V_MapManagePower with encryption
AS
SELECT dbo.ManageUser.ManageUserID, dbo.ManageUser.ManageUserName,
dbo.ManageUser.ManageUserLock, dbo.ManageGroup.ManageGroupID,
dbo.ManageGroup.ManageGroupName
FROM dbo.ManageGroup INNER JOIN
dbo.ManagePowerConfig ON
dbo.ManageGroup.ManageGroupID = dbo.ManagePowerConfig.ManageGroupID INNER
JOIN
dbo.ManageUser ON
dbo.ManagePowerConfig.ManageUserID = dbo.ManageUser.ManageUserID
--这个创建的视图语句就比上面的多了with encryption,结果再去看视图设计的时候就加密了
CREATE VIEW dbo.V_MapManagePower with encryption
AS
SELECT dbo.ManageUser.ManageUserID, dbo.ManageUser.ManageUserName,
dbo.ManageUser.ManageUserLock, dbo.ManageGroup.ManageGroupID,
dbo.ManageGroup.ManageGroupName
FROM dbo.ManageGroup INNER JOIN
dbo.ManagePowerConfig ON
dbo.ManageGroup.ManageGroupID = dbo.ManagePowerConfig.ManageGroupID INNER
JOIN
dbo.ManageUser ON
dbo.ManagePowerConfig.ManageUserID = dbo.ManageUser.ManageUserID再来看看从SQL企业管理器中操作的方式,这下知道了吧,不可逆的~~~~~