SQL 脚本整理笔记

1.视图存储过程触发器批量加密（With Encryption），单个解密

在运行过程中自己找不到启用DAC 的地方，链接的时候需要在服务器名称前面添加ADMIN:，如本机是ADMIN:WP-PC

另外加密后的对象可以用ＳＱＬ　ｐｒｏｍｐｔ　直接单独查看，所以意义不是很大；防一些不懂的人吧，亲测可以使用；

网络上面有2000的，我自己测试在2008R2，作者本人在2012上面测试也是ＯＫ的

--加密存储过程可以批量加密参数All 或者单个加密已经加密的会有提示

Use master

Go

if object_ID('[sp_EncryptObject]') is not null

    Drop Procedure [sp_EncryptObject]

Go

create procedure sp_EncryptObject

(

    @Object sysname='All'

)

as

/*

    当@Object=All的时候，对所有的函数，存储过程，视图和触发器进行加密

    调用方法：

    1. Execute sp_EncryptObject 'All'

    2. Execute sp_EncryptObject 'ObjectName'

*/

begin

    set nocount on

    if @Object <>'All'

    begin

        if not exists(select 1 from sys.objects a where a.object_id=object_id(@Object) And a.type in('P','V','TR','FN','IF','TF'))

        begin

            --SQL Server 2008

            raiserror 50001 N'无效的加密对象！加密对象必须是函数，存储过程，视图或触发器。'

            --SQL Server 2012

            --throw 50001, N'无效的加密对象！加密对象必须是函数，存储过程，视图或触发器。',1  

            return

        end

        if exists(select 1 from sys.sql_modules a where a.object_id=object_id(@Object) and a.definition is null)

        begin

            --SQL Server 2008

            raiserror 50001 N'对象已经加密！'

            --SQL Server 2012

            --throw 50001, N'对象已经加密！',1

            return

        end

    end

    declare @sql nvarchar(max),@C1 nchar(1),@C2 nchar(1),@type nvarchar(50),@Replace nvarchar(50)

    set @C1=nchar(13)

    set @C2=nchar(10)

    declare cur_Object

        cursor for

            select object_name(a.object_id) As ObjectName,a.definition

                from sys.sql_modules a

                    inner join sys.objects b on b.object_id=a.object_id

                        and b.is_ms_shipped=0

                        and not exists(select 1

                                            from sys.extended_properties x

                                            where x.major_id=b.object_id

                                                and x.minor_id=0

                                                and x.class=1

                                                and x.name='microsoft_database_tools_support'

                                        )

                where b.type in('P','V','TR','FN','IF','TF')

                    and (b.name=@Object or @Object='All')

                    and b.name <>'sp_EncryptObject'

                    and a.definition is not null

                order by Case

                            when b.type ='V' then 1

                            when b.type ='TR' then 2

                            when b.type in('FN','IF','TF') then 3

                            else 4 end,b.create_date,b.object_id

    open cur_Object

    fetch next from cur_Object into @Object,@sql

    while @@fetch_status=0

    begin

        Begin Try

            if objectproperty(object_id(@Object),'ExecIsAfterTrigger')=0 set @Replace='As' ; else set @Replace='For ';

            if (patindex('%'+@C1+@C2+@Replace+@C1+@C2+'%',@sql)>0)

            begin

                set @sql=Replace(@sql,@C1+@C2+@Replace+@C1+@C2,@C1+@C2+'With Encryption'+@C1+@C2+@Replace+@C1+@C2)

            end

            else if(patindex('%'+@C1+@Replace+@C1+'%',@sql)>0)

            begin

                set @sql=Replace(@sql,@C1+@Replace+@C1,@C1+'With Encryption'+@C1+@Replace+@C1)

            end

            else if(patindex('%'+@C2+@Replace+@C2+'%',@sql)>0)

            begin

                set @sql=Replace(@sql,@C2+@Replace+@C2,@C2+'With Encryption'+@C2+@Replace+@C2)

            end

            else if(patindex('%'+@C2+@Replace+@C1+'%',@sql)>0)

            begin

                set @sql=Replace(@sql,@C2+@Replace+@C1,@C1+'With Encryption'+@C2+@Replace+@C1)

            end

            else if(patindex('%'+@C1+@C2+@Replace+'%',@sql)>0)

            begin

                set @sql=Replace(@sql,@C1+@C2+@Replace,@C1+@C2+'With Encryption'+@C1+@C2+@Replace)

            end

            else if(patindex('%'+@C1+@Replace+'%',@sql)>0)

            begin

                set @sql=Replace(@sql,@C1+@Replace,@C1+'With Encryption'+@C1+@Replace)

            end

            else if(patindex('%'+@C2+@Replace+'%',@sql)>0)

            begin

                set @sql=Replace(@sql,@C2+@Replace,@C2+'With Encryption'+@C2+@Replace)

            end

            set @type =

                case

                    when object_id(@Object,'P')>0 then 'Proc'

                    when object_id(@Object,'V')>0 then 'View'

                    when object_id(@Object,'TR')>0  then 'Trigger'

                    when object_id(@Object,'FN')>0 or object_id(@Object,'IF')>0 or object_id(@Object,'TF')>0 then 'Function'

                end

            set @sql=Replace(@sql,'Create '+@type,'Alter '+@type)

            Begin Transaction

            exec(@sql)

            print N'已完成加密对象('+@type+')：'+@Object

            Commit Transaction

        End Try

        Begin Catch

            Declare @Error nvarchar(2047)

            Set @Error='Object: '+@Object+@C1+@C2+'Error: '+Error_message()

            Rollback Transaction

            print @Error

            print @sql

        End Catch

        fetch next from cur_Object into @Object,@sql

    end

    close cur_Object

    deallocate cur_Object

end

Go

exec sp_ms_marksystemobject 'sp_EncryptObject' --标识为系统对象

go

--解密存储过程

Use master

Go

if object_ID('[sp_DecryptObject]') is not null

    Drop Procedure [sp_DecryptObject]

Go

create procedure sp_DecryptObject

(

    @Object sysname,    --要解密的对象名：函数，存储过程，视图或触发器

    @MaxLength int=4000 --评估内容的长度

)

as

set nocount on

/* 1. 解密 */

if not exists(select 1 from sys.objects a where a.object_id=object_id(@Object) And a.type in('P','V','TR','FN','IF','TF'))

begin

    --SQL Server 2008

    raiserror 50001 N'无效的对象！要解密的对象必须是函数，存储过程，视图或触发器。' 

    --SQL Server 2012

    --throw 50001, N'无效的对象！要解密的对象必须是函数，存储过程，视图或触发器。',1

    return

end

if exists(select 1 from sys.sql_modules a where a.object_id=object_id(@Object) and a.definition is not null)

begin

    --SQL Server 2008

    raiserror 50001 N'对象没有加密！' 

    --SQL Server 2012

    --throw 50001, N'无效的对象！要解密的对象必须是函数，存储过程，视图或触发器。',1

    return

end

declare  @sql nvarchar(max)                --解密出来的SQL语句

        ,@imageval nvarchar(max)        --加密字符串

        ,@tmpStr nvarchar(max)            --临时SQL语句

        ,@tmpStr_imageval nvarchar(max) --临时SQL语句(加密后)

        ,@type char(2)                    --对象类型('P','V','TR','FN','IF','TF')

        ,@objectID int                    --对象ID

        ,@i int                            --While循环使用

        ,@Oject1 nvarchar(1000)

set @objectID=object_id(@Object)

set @type=(select a.type from sys.objects a where a.object_id=@objectID)

declare @Space4000 nchar(4000)

set @Space4000=replicate('-',4000)

/*

@tmpStr 会构造下面的SQL语句

-------------------------------------------------------------------------------

alter trigger Tr_Name on Table_Name with encryption for update as return /**/

alter proc Proc_Name with encryption  as select 1 as col /**/

alter view View_Name with encryption as select 1 as col /**/

alter function Fn_Name() returns int with encryption as begin return(0) end/**/

*/

set @Oject1=quotename(object_schema_name(@objectID))+'.'+quotename(@Object)

set @tmpStr=

        case

            when @type ='P ' then N'Alter Procedure '+@Oject1+' with encryption as select 1 as column1 '

            when @type ='V ' then N'Alter View '+@Oject1+' with encryption as select 1 as column1 '

            when @type ='FN' then N'Alter Function '+@Oject1+'() returns int with encryption as begin return(0) end '

            when @type ='IF' then N'Alter Function '+@Oject1+'() returns table with encryption as return(Select a.name from sys.types a) '

            when @type ='TF' then N'Alter Function '+@Oject1+'() returns @t table(name nvarchar(50)) with encryption as begin return end '

            else 'Alter Trigger '+@Oject1+'on '+quotename(object_schema_name(@objectID))+'.'+(select Top(1) quotename(object_name(parent_id)) from sys.triggers a where a.object_id=@objectID)+' with encryption for update as return '

        end        

set @tmpStr=@tmpStr+'/*'+@Space4000

set @i=0

while @i < (ceiling(@MaxLength*1.0/4000)-1)

begin

    set @tmpStr=@tmpStr+ @Space4000

    Set @i=@i+1

end

set @tmpStr=@tmpStr+'*/'

------------

set @imageval =(select top(1) a.imageval from sys.sysobjvalues a where a.objid=@objectID and a.valclass=1)

begin tran

exec(@tmpStr)

set @tmpStr_imageval =(select top(1) a.imageval from sys.sysobjvalues a where a.objid=@objectID and a.valclass=1)

rollback tran

-------------

set @tmpStr=stuff(@tmpStr,1,5,'create')

set @sql=''

set @i=1

while @i<= (datalength(@imageval)/2)

begin

    set @sql=@sql+isnull(nchar(unicode(substring(@tmpStr,@i,1)) ^ unicode(substring(@tmpStr_imageval,@i,1))^unicode(substring(@imageval,@i,1)) ),'')

    Set @i+=1

end

/* 2. 列印 */

declare @patindex int

while @sql>''

begin

    set @patindex=patindex('%'+char(13)+char(10)+'%',@sql)

    if @patindex >0

    begin

        print substring(@sql,1,@patindex-1)

        set @sql=stuff(@sql,1,@patindex+1,'')

    end

    else

    begin

        set @patindex=patindex('%'+char(13)+'%',@sql)

        if @patindex >0

        begin

            print substring(@sql,1,@patindex-1)

            set @sql=stuff(@sql,1,@patindex,'')

        end

        else

        begin

            set @patindex=patindex('%'+char(10)+'%',@sql)

            if @patindex >0

            begin

                print substring(@sql,1,@patindex-1)

                set @sql=stuff(@sql,1,@patindex,'')

            end

            else

            begin

                print @sql

                set @sql=''

            end

        end

    end

end

Go

exec sp_ms_marksystemobject 'sp_DecryptObject' --标识为系统对象

go

--解密测试

CREATE  PROC sp_SplitResult2

With Encryption

As

    BEGIN

    SELECT * FROM dbo.Orders

    END 

  exec sp_DecryptObject sp_SplitResult2

http://www.cnblogs.com/lyhabc/p/3384906.html

http://www.cnblogs.com/wghao/archive/2012/12/30/2837642.html

下面的是利用工具批量解密网址都是华仔的

http://www.cnblogs.com/lyhabc/p/3505677.html

以游标技术，列举出所有学生的名单，包括学生姓名、选择的课程的数量，SQL题目

-- 前面先取一次数据，后面再调用赋值的变量在循环里面利用赋值的变量去到课程表里面找所选课程数量

--假设有2个表 tStudent(sno,name ) tCourse(sno CourseName)

--假设有2个表 tStudent(sno,name )  tCourse(sno CourseName)

IF OBJECT_ID('tStudent') > 0

    DROP TABLE tStudent

IF OBJECT_ID('tCourse') > 0

    DROP TABLE tCourse

CREATE TABLE tStudent

    (

      sno VARCHAR(10) ,

      name NVARCHAR(10)

    )

CREATE TABLE tCourse

    (

      sno VARCHAR(10) ,

      CourseName NVARCHAR(10)

    )

INSERT  dbo.tStudent

        ( sno, name )

VALUES  ( '', -- fstudentno - varchar(10)

          N'小张'  -- fname - nvarchar(10)

          )

INSERT  dbo.tStudent

        ( sno, name )

VALUES  ( '', -- fstudentno - varchar(10)

          N'小李'  -- fname - nvarchar(10)

          )

INSERT  dbo.tStudent

        ( sno, name )

VALUES  ( '', -- fstudentno - varchar(10)

          N'小如'  -- fname - nvarchar(10)

          )

INSERT  dbo.tCourse

        ( sno, CourseName )

VALUES  ( '', -- sno - varchar(10)

          N'英语'  -- CourseName - nvarchar(10)

          )

INSERT  dbo.tCourse

        ( sno, CourseName )

VALUES  ( '', -- sno - varchar(10)

          N'语文'  -- CourseName - nvarchar(10)

          )

INSERT  dbo.tCourse

        ( sno, CourseName )

VALUES  ( '', -- sno - varchar(10)

          N'语文'  -- CourseName - nvarchar(10)

          )

--建立存储过程里面使用游标遍历所有学生

Create  PROC GetInfo

AS

    BEGIN

        DECLARE curName CURSOR FAST_FORWARD

        FOR

            ( SELECT DISTINCT

                        *

              FROM      dbo.tStudent

            )

        OPEN curName

        DECLARE @sno VARCHAR(10) ,

            @name NVARCHAR(10) ,

            @coursenum INT

        DECLARE @tb TABLE

            (

              name NVARCHAR(10) ,

              coursenum INT

            )

        FETCH NEXT FROM curName

        INTO @sno, @name

        SELECT  @coursenum = ISNULL(COUNT(DISTINCT CourseName), 0)

        FROM    tCourse

        WHERE   sno = @sno

        --INSERT  @tb

        --        SELECT  @name ,

        --                @coursenum

        WHILE @@FETCH_STATUS = 0

            BEGIN

                SELECT  @coursenum = ISNULL(COUNT(DISTINCT CourseName), 0)

                FROM    tCourse

                WHERE   sno = @sno

                INSERT  @tb

                        SELECT  @name ,

                                @coursenum

                FETCH NEXT FROM curName

INTO @sno, @name

            END 

        SELECT  *

        FROM    @tb

        CLOSE curName

        DEALLOCATE curName

    END

-- 查看执行结果

exec GetInfo

巴特西

SQL 脚本整理笔记

1.视图存储过程触发器批量加密（With Encryption），单个解密

以游标技术，列举出所有学生的名单，包括学生姓名、选择的课程的数量，SQL题目

最新文章

热门文章

巴特西

SQL 脚本整理 笔记

1.视图 存储过程 触发器 批量加密（With Encryption），单个解密

以游标技术，列举出所有学生的名单，包括学生姓名、选择的课程的数量，SQL题目

最新文章

热门文章

SQL 脚本整理笔记

1.视图存储过程触发器批量加密（With Encryption），单个解密