Http://searchDatabase.techtarget.com/tip/1,289483,ss13_gci837799,00.html
This SP will decrypt Stored Procedures, Views or Triggers that were encrypted using "with encryption" It is adapted from a script by Joseph Gama and ShoeBoy There are two versions:.. One for SP's only and the other one for SP's, triggers and views For Version 1, THE INPUT IS Object Name (Stored Procedure, View Or Trigger, And for Version 2, The Input IS Object Name (Stored Procedure, View Or Trigger), Object Type ('T'-Trigger,' P ' -stored procedure or 'v'-view). from planetsourcecode.com.
Create Procedure SP_Decrypt_sp (@Objectname Varchar (50))
AS
Declare @ Origsptext1 nvarchar (4000), @ igsptext2 nvarchar (4000), @ sptext3 nvarchar (4000), @Resultsp NVARCHAR (4000)
Declare @i int, @t bigint
- Get Encrypted Data
Set @ OrigspText1 = (Select ctext from syscomments where id = Object_id (@Objectname))
Set @ igsptext2 = 'alter procedure' @objectname 'with encryption as' replicate ('-', 3938)
Execute (@ ptext2)
Set @ OrigspText3 = (Select ctext from syscomments where id = Object_id (@Objectname))
Set @ OrigspText2 = 'Create Procedure' @Objectname 'with Encryption As' Replicate ('-', 4000-62)
--Start Counter
Set @ i = 1
- Fill Temporary Variable
Set @Resultsp = Replicate (N'A ', (DatalesPtext1) / 2)))
--LOOP
While @i <= datalength (@ ptext1) / 2
Begin
--Reverse Encryption (xor Original Bogus Bogus Encrypted)
Set @Resultsp = stuff (@Resultsp, @i, 1, nchar (unicode (@ Origsptext1, @i, 1)) ^ (unicode (@ ptext2, @i, 1)) ^
Unicode (@ OrigspText3, @i, 1))))))))))))))
Set @ i = @ i 1
End
--Drop Original SP
Execute ('Drop Procedure' @Objectname)
--Remove Encryption
--Preserve Case
Set @ resultsp = Replace (@RESULTSP), 'with encryption', '')
Set @ resultsp = Replace (@RESULTSP), 'with encryption', '')
Set @ resultsp = Replace (@RESULTSP), 'with encryption', '')
If Charindex ('with Encryption', Upper (@Resultsp)> 0
Set @ resultsp = replace (Upper (@Resultsp), 'with encryption', '')
- Repece Stored Procedure without Enryption
Execute (@Resultsp)
Go
Reader Feedback
JOAKIM M. WRITES: I Tried this Script with Mixed Results. It works for Some Encrypted Procedures, But for Others I Get Error Meassages LIKE:
Server: MSG 512, Level 16, State 1, Procedure SP_Decrypt_SP, LINE 7.
Subquery Returned More Than 1 Value. This is not permitted when
SubQuery Follows =,! =, <, <=,>>,> = or or the subs quiUERY IS USED AS
AN expression.
Karl C writes: I got the same message as Joakim M. but upon further investigation I found that this happens only when stored procedures exceed 4000 characters When this happens, SQL Server stores the procedure across multiple rows so you get the error 'subquery returne. More Than 1 Row '. To get arround this you can change the statement
Select ctext from syscomments where id = Object_id (@Objectname
TO
SELECT top 1 ctext FROM syscomments WHERE id = object_id (@objectName order by colidThat will get you the first part of the stored procedure, which can not be created because it is missing the end part and is not a valid syntax but you can print @Resultsp Out to see it it.
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