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SQL Server存储过程加密和解密

来源:互联网 作者:佚名 时间:2015-09-08 10:58
SQL Server 加密 存储 过程 用到WITH ENCRYPTION参数的时候,就可以将它 加密 ,这种 加密 方式是不可逆的,再也不能打开了,那么我们怎么样才能看到原来的代码而不破坏这个 存储 过程 呢? 如何 加密 SQL Server 存储 过程 ? 命令如: CREATE Procedure 存

SQL Server加密存储过程用到“WITH ENCRYPTION”参数的时候,就可以将它加密,这种加密方式是不可逆的,再也不能打开了,那么我们怎么样才能看到原来的代码而不破坏这个存储过程呢?

如何加密SQL Server存储过程

命令如:
CREATE Procedure 存储过程名(...) WITH ENCRYPTION AS ...

SQLServer2005里使用with encryption选项创建的存储过程仍然和sqlserver2000里一样,都是使用XOR进行了的加密。和2000不一样的是,在2005的系统表syscomments里已经查不到加密过的密文了。要查密文必须使用DAC(专用管理员连接)连接到数据库后,在系统表sys.sysobjvalues查询,该表的列imageval存储了相应的密文。具体可以使用下面的查询:

SELECT imageval FROM sys.sysobjvalues WHERE objid = object_id(@procedure) AND
valclass = 1 AND subobjid = 1

针对SQL Server 2000的解密存储过程

create  PROCEDURE sp_decrypt(@objectname varchar(50))
AS
begin
set nocount on
--CSDN:j9988 copyright:2004.07.15
--V3.2
--破解字节不受限制,适用于SQLSERVER2000存储过程,函数,视图,触发器
--修正上一版"视图触发器"不能正确解密错误
--发现有错,请E_MAIL:
begin tran
declare @objectname1 varchar(100),@orgvarbin varbinary(8000)
declare @sql1 nvarchar(4000),@sql2 varchar(8000),@sql3 nvarchar(4000),@sql4 nvarchar(4000)
DECLARE  @OrigSpText1 nvarchar(4000),  @OrigSpText2 nvarchar(4000) , @OrigSpText3 nvarchar(4000), @resultsp nvarchar(4000)
declare  @i int,@status int,@type varchar(10),@parentid int
declare @colid int,@n int,@q int,@j int,@k int,@encrypted int,@number int
select @type=xtype,@parentid=parent_obj from sysobjects where id=object_id(@objectname)

create table  #temp(number int,colid int,ctext varbinary(8000),encrypted int,status int)
insert #temp SELECT number,colid,ctext,encrypted,status FROM syscomments  WHERE id = object_id(@objectname)
select @number=max(number) from #temp
set @k=0

while @k<
begin
if exists(select 1 from syscomments where id=object_id(@objectname) and )
begin
if @type='P'
set @sql1=(case when @number>1 then 'ALTER PROCEDURE '+ @objectname +';'+rtrim(@k)+' WITH ENCRYPTION AS '
                          else 'ALTER PROCEDURE '+ @objectname+' WITH ENCRYPTION AS '
                          end)

if @type='TR'
begin
declare @parent_obj varchar(255),@tr_parent_xtype varchar(10)
select @parent_obj=parent_obj from sysobjects where id=object_id(@objectname)
select @tr_parent_xtype=xtype from sysobjects where
if @tr_parent_xtype='V'
begin
set @sql1='ALTER TRIGGER ON '+OBJECT_NAME(@parentid)+' WITH ENCRYPTION INSTERD OF INSERT AS PRINT 1 '
end
else
begin
set @sql1='ALTER TRIGGER ON '+OBJECT_NAME(@parentid)+' WITH ENCRYPTION FOR INSERT AS PRINT 1 '
end

end
if @type='FN' or @type='TF' or @type='IF'
set @sql1=(case @type when 'TF' then
'ALTER FUNCTION '+ @objectname+'(@a char(1)) returns @b table(a varchar(10)) with encryption as begin insert @b select @a return end '
when 'FN' then
'ALTER FUNCTION '+ @objectname+'(@a char(1)) returns char(1) with encryption as begin return @a end'
when 'IF' then
'ALTER FUNCTION '+ @objectname+'(@a char(1)) returns table with encryption as return select @a as a'
end)

if @type='V'
set @sql1='ALTER VIEW WITH ENCRYPTION AS SELECT 1 as f'

set @q=len(@sql1)
set @sql1=@sql1+REPLICATE('-',4000-@q)
select @sql2=REPLICATE('-',8000)
set @sql3='exec(@sql1'
select @colid=max(colid) from #temp where
set @n=1
while @n<=CEILING(1.0*(@colid-1)/2) and len(@sql3)<=3996
begin
set @sql3=@sql3+'+@'
set @n=@n+1
end
set @sql3=@sql3+')'
exec sp_executesql @sql3,N'@sql1 nvarchar(4000),@ varchar(8000)',@sql1=@sql1,@=@sql2

end
set @k=@k+1
end

set @k=0
while @k<
begin

if exists(select 1 from syscomments where id=object_id(@objectname) and )
begin
select @colid=max(colid) from #temp where
set @n=1

while @n<
begin
select @OrigSpText1=ctext,@encrypted=encrypted,@status=status FROM #temp  WHERE and

SET @OrigSpText3=(SELECT ctext FROM syscomments WHERE id=object_id(@objectname) and and )
if @n=1
begin
if @type='P'
SET @OrigSpText2=(case when @number>1 then 'CREATE PROCEDURE '+ @objectname +';'+rtrim(@k)+' WITH ENCRYPTION AS '
                       else 'CREATE PROCEDURE '+ @objectname +' WITH ENCRYPTION AS '
                       end)


if @type='FN' or @type='TF' or @type='IF'
SET @OrigSpText2=(case @type when 'TF' then
'CREATE FUNCTION '+ @objectname+'(@a char(1)) returns @b table(a varchar(10)) with encryption as begin insert @b select @a return end '
when 'FN' then
'CREATE FUNCTION '+ @objectname+'(@a char(1)) returns char(1) with encryption as begin return @a end'
when 'IF' then
'CREATE FUNCTION '+ @objectname+'(@a char(1)) returns table with encryption as return select @a as a'
end)

if @type='TR'
begin

if @tr_parent_xtype='V'
begin
set @OrigSpText2='CREATE TRIGGER ON '+OBJECT_NAME(@parentid)+' WITH ENCRYPTION INSTEAD OF INSERT AS PRINT 1 '
end
else
begin
set @OrigSpText2='CREATE TRIGGER ON '+OBJECT_NAME(@parentid)+' WITH ENCRYPTION FOR INSERT AS PRINT 1 '
end

end

if @type='V'
set @OrigSpText2='CREATE VIEW WITH ENCRYPTION AS SELECT 1 as f'

set @q=4000-len(@OrigSpText2)
set @OrigSpText2=@OrigSpText2+REPLICATE('-',@q)
end
else
begin
SET @OrigSpText2=REPLICATE('-', 4000)
end
SET @i=1

SET @resultsp = replicate(N'A', (datalength(@OrigSpText1) / 2))

WHILE @i<=datalength(@OrigSpText1)/2
BEGIN

SET @resultsp = stuff(@resultsp, @i, 1, NCHAR(UNICODE(substring(@OrigSpText1, @i, 1)) ^
                                (UNICODE(substring(@OrigSpText2, @i, 1)) ^
                                UNICODE(substring(@OrigSpText3, @i, 1)))))
 SET @i=@i+1
END
set @orgvarbin=cast(@OrigSpText1 as varbinary(8000))
set @resultsp=(case when @encrypted=1
                    then @resultsp
                    else convert(nvarchar(4000),case when @status&2=2 then uncompress(@orgvarbin) else @orgvarbin end)
               end)
print @resultsp

set @n=@n+1

end

end
set @k=@k+1
end

drop table #temp
rollback tran
end


针对SQL Server 2005的解密存储过程

create PROCEDURE [dbo].[sp__windbi$decrypt]
(@procedure sysname = NULL, @revfl int = 1)
AS
/*
王成辉翻译整理,转贴请注明出自微软BI开拓者www.windbi.com
目前这个存储过程只能解密存储过程,至于解密函数、触发器、视图的存储过程本网站会进一步关注,调用形式为:
exec dbo.sp__windbi$decrypt @procedure,0
如果第二个参数使用1的话,会给出该存储过程的一些提示。
--版本2.0
*/
SET NOCOUNT ON
IF @revfl = 1
BEGIN
PRINT '警告:该存储过程会删除并重建原始的存储过程。'
PRINT ' 在运行该存储过程之前确保你的数据库有一个备份。'
PRINT ' 该存储过程通常应该运行在产品环境的一个备份的非产品环境下。'
PRINT ' 为了运行这个存储过程,将参数@refl的值更改为0。'
RETURN 0
END
DECLARE @intProcSpace bigint, @t bigint, @maxColID smallint,@intEncrypted
tinyint,@procNameLength int
select @maxColID = max(subobjid),@intEncrypted = imageval FROM
sys.sysobjvalues WHERE objid = object_id(@procedure)
GROUP BY imageval
--select @maxColID as 'Rows in sys.sysobjvalues'
select @procNameLength = datalength(@procedure) + 29
DECLARE @real_01 nvarchar(max)
DECLARE @fake_01 nvarchar(max)
DECLARE @fake_encrypt_01 nvarchar(max)
DECLARE @real_decrypt_01 nvarchar(max),@real_decrypt_01a nvarchar(max)
declare @objtype varchar(2),@ParentName nvarchar(max)
select @real_decrypt_01a = ''
--提取对象的类型如是存储过程还是函数,如果是触发器,还要得到其父对象的名称
select @objtype=type,@parentname=object_name(parent_object_id)
from sys.objects where [object_id]=object_id(@procedure)
-- 从sys.sysobjvalues里提出加密的imageval记录
SET @real_01=(SELECT top 1 imageval FROM sys.sysobjvalues WHERE objid =
object_id(@procedure) and valclass = 1 order by subobjid)
--创建一个临时表
create table #output ( [ident] [int] IDENTITY (1, 1) NOT NULL ,
[real_decrypt] NVARCHAR(MAX) )
--开始一个事务,稍后回滚
BEGIN TRAN
--更改原始的存储过程,用短横线替换
if @objtype='P'
  SET @fake_01='ALTER PROCEDURE '+ @procedure +' WITH ENCRYPTION AS
  '+REPLICATE('-', 40003 - @procNameLength)
else if @objtype='FN'
  SET @fake_01='ALTER FUNCTION '+ @procedure +'() RETURNS INT WITH ENCRYPTION AS BEGIN RETURN 1
  /*'+REPLICATE('*', datalength(@real_01) /2 - @procNameLength)+'*/ END'
else if @objtype='V'
  SET @fake_01='ALTER view '+ @procedure +' WITH ENCRYPTION AS select 1 as col
  /*'+REPLICATE('*', datalength(@real_01) /2 - @procNameLength)+'*/'
else if @objtype='TR'
  SET @fake_01='ALTER trigger '+ @procedure +' ON WITH ENCRYPTION AFTER INSERT AS RAISERROR (''N'',16,10)
  /*'+REPLICATE('*', datalength(@real_01) /2 - @procNameLength)+'*/'
EXECUTE (@fake_01)
--从sys.sysobjvalues里提出加密的假的
SET @fake_encrypt_01=(SELECT top 1 imageval FROM sys.sysobjvalues WHERE objid =
object_id(@procedure) and valclass = 1 order by subobjid )
if @objtype='P'
  SET @fake_01='Create PROCEDURE '+ @procedure +' WITH ENCRYPTION AS
  '+REPLICATE('-', 40003 - @procNameLength)
else if @objtype='FN'
  SET @fake_01='CREATE FUNCTION '+ @procedure +'() RETURNS INT WITH ENCRYPTION AS BEGIN RETURN 1
  /*'+REPLICATE('*', datalength(@real_01) /2 - @procNameLength)+'*/ END'
else if @objtype='V'
  SET @fake_01='Create view '+ @procedure +' WITH ENCRYPTION AS select 1 as col
  /*'+REPLICATE('*', datalength(@real_01) /2 - @procNameLength)+'*/'
else if @objtype='TR'
  SET @fake_01='Create trigger '+ @procedure +' ON WITH ENCRYPTION AFTER INSERT AS RAISERROR (''N'',16,10)
  /*'+REPLICATE('*', datalength(@real_01) /2 - @procNameLength)+'*/'
--开始计数
SET @intProcSpace=1
--使用字符填充临时变量
SET @real_decrypt_01 = replicate(N'A', (datalength(@real_01) /2 ))
--循环设置每一个变量,创建真正的变量
--每次一个字节
SET @intProcSpace=1
--如有必要,遍历每个@real_xx变量并解密
WHILE @intProcSpace<=(datalength(@real_01)/2)
BEGIN
--真的和假的和加密的假的进行异或处理
SET @real_decrypt_01 = stuff(@real_decrypt_01, @intProcSpace, 1,
NCHAR(UNICODE(substring(@real_01, @intProcSpace, 1)) ^
(UNICODE(substring(@fake_01, @intProcSpace, 1)) ^
UNICODE(substring(@fake_encrypt_01, @intProcSpace, 1)))))
SET @intProcSpace=@intProcSpace+1
END
--通过sp_helptext逻辑向表#output里插入变量
insert #output (real_decrypt) select @real_decrypt_01
-- select real_decrypt AS '#output chek' from #output --测试
-- -------------------------------------
--开始从sp_helptext提取
-- -------------------------------------
declare @dbname sysname
,@BlankSpaceAdded int
,@BasePos int
,@CurrentPos int
,@TextLength int
,@LineId int
,@AddOnLen int
,@LFCR int --回车换行的长度
,@DefinedLength int
,@SyscomText nvarchar(4000)
,@Line nvarchar(255)
Select @DefinedLength = 255
SELECT @BlankSpaceAdded = 0 --跟踪行结束的空格。注意Len函数忽略了多余的空格
CREATE TABLE #CommentText
(LineId int
,Text nvarchar(255) collate database_default)
--使用#output代替sys.sysobjvalues
DECLARE ms_crs_syscom CURSOR LOCAL
FOR SELECT real_decrypt from #output
ORDER BY ident
FOR READ ONLY
--获取文本
SELECT @LFCR = 2
SELECT @LineId = 1
OPEN ms_crs_syscom
FETCH NEXT FROM ms_crs_syscom into @SyscomText
WHILE @@fetch_status >= 0
BEGIN
SELECT @BasePos = 1
SELECT @CurrentPos = 1
SELECT @TextLength = LEN(@SyscomText)
WHILE @CurrentPos != 0
BEGIN
--通过回车查找行的结束
SELECT @CurrentPos = CHARINDEX(char(13)+char(10), @SyscomText,
@BasePos)
--如果找到回车
IF @CurrentPos != 0
BEGIN
--如果@Lines的长度的新值比设置的大就插入@Lines目前的内容并继续
While (isnull(LEN(@Line),0) + @BlankSpaceAdded +
@CurrentPos-@BasePos + @LFCR) > @DefinedLength
BEGIN
SELECT @AddOnLen = @DefinedLength-(isnull(LEN(@Line),0) +
@BlankSpaceAdded)
INSERT #CommentText VALUES
( @LineId,
isnull(@Line, N'') + isnull(SUBSTRING(@SyscomText,
@BasePos, @AddOnLen), N''))
SELECT @Line = NULL, @LineId = @LineId + 1,
@BasePos = @BasePos + @AddOnLen, @BlankSpaceAdded = 0
END
SELECT @Line = isnull(@Line, N'') +
isnull(SUBSTRING(@SyscomText, @BasePos, @CurrentPos-@BasePos + @LFCR), N'')
SELECT @BasePos = @CurrentPos+2
INSERT #CommentText VALUES( @LineId, @Line )
SELECT @LineId = @LineId + 1
SELECT @Line = NULL
END
ELSE
--如果回车没找到
BEGIN
IF @BasePos <= @TextLength
BEGIN
--如果@Lines长度的新值大于定义的长度
While (isnull(LEN(@Line),0) + @BlankSpaceAdded +
@TextLength-@BasePos+1 ) > @DefinedLength
BEGIN
SELECT @AddOnLen = @DefinedLength -
(isnull(LEN(@Line),0) + @BlankSpaceAdded)
INSERT #CommentText VALUES
( @LineId,
isnull(@Line, N'') + isnull(SUBSTRING(@SyscomText,
@BasePos, @AddOnLen), N''))
SELECT @Line = NULL, @LineId = @LineId + 1,
@BasePos = @BasePos + @AddOnLen, @BlankSpaceAdded =
0
END
SELECT @Line = isnull(@Line, N'') +
isnull(SUBSTRING(@SyscomText, @BasePos, @TextLength-@BasePos+1 ), N'')
if LEN(@Line) < @DefinedLength and charindex(' ',
@SyscomText, @TextLength+1 ) > 0
BEGIN
SELECT @Line = @Line + ' ', @BlankSpaceAdded = 1
END
END
END
END
FETCH NEXT FROM ms_crs_syscom into @SyscomText
END
IF @Line is NOT NULL
INSERT #CommentText VALUES( @LineId, @Line )
select Text from #CommentText order by LineId
CLOSE ms_crs_syscom
DEALLOCATE ms_crs_syscom
DROP TABLE #CommentText
-- -------------------------------------
--结束从sp_helptext提取
-- -------------------------------------
--删除用短横线创建的存储过程并重建原始的存储过程
ROLLBACK TRAN
DROP TABLE #output


英文原文:
http://www.derkeiler.com/Newsgroups/microsoft.public.sqlserver.security/2006-08/msg00286.html

SQL 2005 still obfuscates object encryption in a similar manner to SQL 2000.
It is simply an XOR of the encrypted bytes against a known sample to dump
out the real unencrypted bytes. The trick is getting to the the encrypted
bytes. In SQL 2005, instead of querying the SYSCOMMENTS view to get the
binary bytes to decrypt, you need to run the following query from the
dedicated admin connection (DAC) to get the bytes to decrypt:

SELECT imageval FROM sys.sysobjvalues WHERE id = object_id(@procedure) AND
valclass = 1 AND subobjid = 1

where @procedure is the name of the object that you want to decrypt. The
table sys.sysobjvalues is one of those new system tables that is normally
hidden. It is actually easier in SQL 2005 because you don't have to string
together 4000 character blocks from SYSCOMMENTS records like you had to do
in SQL 2000. Code to do the XOR on SQL 2000 is well documented on the web.
I'm including my work below.

This is code that I quickly rolled together from my old SQL 2000 decrypt
code. It isn't perfect yet but should get you down the line. It only does
procedures. It actually wraps the ALTER PROCEDURE in a rolled-back
transaction so it shouldn't be too problematic. Then again my local copy of
SQL Server 2005 only starts with the -f flag this morning ;-). Have fun.

Chuck


CREATE PROCEDURE dbo.sp__procedure$decrypt
(@procedure sysname = NULL, @revfl int = 1)
AS
SET NOCOUNT ON

IF @revfl = 1
BEGIN
PRINT 'CAUTION: THIS PROCEDURE DELETES AND REBUILDS THE ORIGINAL STORED
PROCEDURE.'
PRINT ' MAKE A BACKUP OF YOUR DATABASE BEFORE RUNNING THIS PROCEDURE.'
PRINT ' IDEALLY, THIS PROCEDURE SHOULD BE RUN ON A NON-PRODUCTION COPY
OF THE PROCEDURE.'
PRINT ' To run the procedure, change the @revfl parameter to 0'
RETURN 0
END

DECLARE @intProcSpace bigint, @t bigint, @maxColID smallint,@intEncrypted
tinyint,@procNameLength int
select @maxColID = max(colid),@intEncrypted = encrypted FROM
sys.sysobjvalues WHERE id = object_id(@procedure)
GROUP BY encrypted

--select @maxColID as 'Rows in sys.sysobjvalues'
select @procNameLength = datalength(@procedure) + 29

DECLARE @real_01 nvarchar(max)

DECLARE @fake_01 nvarchar(max)

DECLARE @fake_encrypt_01 nvarchar(max)

DECLARE @real_decrypt_01 nvarchar(max),@real_decrypt_01a nvarchar(max)

select @real_decrypt_01a = ''

-- extract the encrypted imageval rows from sys.sysobjvalues
SET @real_01=(SELECT imageval FROM sys.sysobjvalues WHERE id =
object_id(@procedure) and valclass = 1 and subobjid = 1 )

-- create this table for later use
create table #output ( [ident] [int] IDENTITY (1, 1) NOT NULL ,
[real_decrypt] NVARCHAR(MAX) )

-- We'll begin the transaction and roll it back later
BEGIN TRAN
-- alter the original procedure, replacing with dashes
SET @fake_01='ALTER PROCEDURE '+ @procedure +' WITH ENCRYPTION AS
'+REPLICATE('-', 40003 - @procNameLength)

EXECUTE (@fake_01)

-- extract the encrypted fake imageval rows from sys.sysobjvalues
SET @fake_encrypt_01=(SELECT imageval FROM sys.sysobjvalues WHERE id =
object_id(@procedure) and valclass = 1 and subobjid = 1)


SET @fake_01='CREATE PROCEDURE '+ @procedure +' WITH ENCRYPTION AS
'+REPLICATE('-', 40003 - @procNameLength)
--start counter
SET @intProcSpace=1
--fill temporary variable with with a filler character
SET @real_decrypt_01 = replicate(N'A', (datalength(@real_01) /2 ))

--loop through each of the variables sets of variables, building the real
variable
--one byte at a time.
SET @intProcSpace=1

-- Go through each @real_xx variable and decrypt it, as necessary
WHILE @intProcSpace<=(datalength(@real_01)/2)
BEGIN
--xor real & fake & fake encrypted
SET @real_decrypt_01 = stuff(@real_decrypt_01, @intProcSpace, 1,
NCHAR(UNICODE(substring(@real_01, @intProcSpace, 1)) ^
(UNICODE(substring(@fake_01, @intProcSpace, 1)) ^
UNICODE(substring(@fake_encrypt_01, @intProcSpace, 1)))))
SET @intProcSpace=@intProcSpace+1
END


-- Load the variables into #output for handling by sp_helptext logic

insert #output (real_decrypt) select @real_decrypt_01
-- select real_decrypt AS '#output chek' from #output -- Testing

-- -------------------------------------
-- Beginning of extract from sp_helptext
-- -------------------------------------
declare @dbname sysname
,@BlankSpaceAdded int
,@BasePos int
,@CurrentPos int
,@TextLength int
,@LineId int
,@AddOnLen int
,@LFCR int --lengths of line feed carriage return
,@DefinedLength int
,@SyscomText nvarchar(4000)
,@Line nvarchar(255)


Select @DefinedLength = 255
SELECT @BlankSpaceAdded = 0 --Keeps track of blank spaces at end of lines.
Note Len function ignores trailing blank spaces
CREATE TABLE #CommentText
(LineId int
,Text nvarchar(255) collate database_default)


-- use #output instead of sys.sysobjvalues
DECLARE ms_crs_syscom CURSOR LOCAL
FOR SELECT real_decrypt from #output
ORDER BY ident
FOR READ ONLY


-- Else get the text.

SELECT @LFCR = 2
SELECT @LineId = 1


OPEN ms_crs_syscom

FETCH NEXT FROM ms_crs_syscom into @SyscomText

WHILE @@fetch_status >= 0
BEGIN

SELECT @BasePos = 1
SELECT @CurrentPos = 1
SELECT @TextLength = LEN(@SyscomText)

WHILE @CurrentPos != 0
BEGIN
--Looking for end of line followed by carriage return
SELECT @CurrentPos = CHARINDEX(char(13)+char(10), @SyscomText,
@BasePos)

--If carriage return found
IF @CurrentPos != 0
BEGIN
--If new value for @Lines length will be > then the
--set length then insert current contents of @line
--and proceed.

While (isnull(LEN(@Line),0) + @BlankSpaceAdded +
@CurrentPos-@BasePos + @LFCR) > @DefinedLength
BEGIN
SELECT @AddOnLen = @DefinedLength-(isnull(LEN(@Line),0) +
@BlankSpaceAdded)
INSERT #CommentText VALUES
( @LineId,
isnull(@Line, N'') + isnull(SUBSTRING(@SyscomText,
@BasePos, @AddOnLen), N''))
SELECT @Line = NULL, @LineId = @LineId + 1,
@BasePos = @BasePos + @AddOnLen, @BlankSpaceAdded = 0
END
SELECT @Line = isnull(@Line, N'') +
isnull(SUBSTRING(@SyscomText, @BasePos, @CurrentPos-@BasePos + @LFCR), N'')
SELECT @BasePos = @CurrentPos+2
INSERT #CommentText VALUES( @LineId, @Line )
SELECT @LineId = @LineId + 1
SELECT @Line = NULL
END
ELSE
--else carriage return not found
BEGIN
IF @BasePos <= @TextLength
BEGIN
--If new value for @Lines length will be > then the
--defined length
--
While (isnull(LEN(@Line),0) + @BlankSpaceAdded +
@TextLength-@BasePos+1 ) > @DefinedLength
BEGIN
SELECT @AddOnLen = @DefinedLength -
(isnull(LEN(@Line),0) + @BlankSpaceAdded)
INSERT #CommentText VALUES
( @LineId,
isnull(@Line, N'') + isnull(SUBSTRING(@SyscomText,
@BasePos, @AddOnLen), N''))
SELECT @Line = NULL, @LineId = @LineId + 1,
@BasePos = @BasePos + @AddOnLen, @BlankSpaceAdded =
0
END
SELECT @Line = isnull(@Line, N'') +
isnull(SUBSTRING(@SyscomText, @BasePos, @TextLength-@BasePos+1 ), N'')
if LEN(@Line) < @DefinedLength and charindex(' ',
@SyscomText, @TextLength+1 ) > 0
BEGIN
SELECT @Line = @Line + ' ', @BlankSpaceAdded = 1
END
END
END
END

FETCH NEXT FROM ms_crs_syscom into @SyscomText
END

IF @Line is NOT NULL
INSERT #CommentText VALUES( @LineId, @Line )

select Text from #CommentText order by LineId

CLOSE ms_crs_syscom
DEALLOCATE ms_crs_syscom

DROP TABLE #CommentText

-- -------------------------------------
-- End of extract from sp_helptext
-- -------------------------------------

-- Drop the procedure that was setup with dashes and rebuild it with the
good stuff
-- Version 1.1 mod; makes rebuilding hte proc unnecessary
ROLLBACK TRAN

DROP TABLE #output

GO

SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO

 

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