Comments on: duplicate file check

By: Kirtan Desai

Kirtan Desai — Wed, 16 May 2007 20:43:46 +0000

You need to read the following.

http://download-east.oracle.com/docs/cd/B10501_01/appdev.920/a96612/d_obtool.htm#6518

Since 10g, with DBMS_CRYPTO, the task became much more easier. DBMS_OBFUSCATION_TOOLKIT hash its own challenges that you are coming across right now. I would suggest you read the documentation for 9i if that’s the version you want to use. Personally, i think time for switching to 10g was almost two years ago.
Read the 9i docs, write the code using DBMS_OBFUSCATION_TOOLKIT and let me know if you have any problems.

Anyways, have fun.
Kirtan

By: sampathmadala

sampathmadala — Wed, 16 May 2007 19:49:17 +0000

Now i can able to grant privilege to SCOTT user. I replaced the DBMS_CRYPTO with DBMS_OBFUSCATION_TOOLKIT,but now i am getting error at the following line in the code

myraw := DBMS_OBFUSCATION_TOOLKIT.hash(src => myclob, typ => DBMS_OBFUSCATION_TOOLKIT.hash_md5);

ERROR:
PLS-00302: component ‘HASH’ must be declared

By: Kirtan Desai

Kirtan Desai — Wed, 16 May 2007 19:04:09 +0000

Check out DBMS_OBFUSCATION_TOOLKIT for 8i or 9i.

By: sampathmadala

sampathmadala — Wed, 16 May 2007 19:02:46 +0000

Oops, i think this function is not available in Oracle 9i version. I am i correct.

Thanks & Regards,
Sam.

By: sampathmadala

sampathmadala — Wed, 16 May 2007 18:59:55 +0000

I am working on Oracle 9i, oh it seems this function is not available in this version.

Thanks & Regards,
Sam.

By: Kirtan Desai

Kirtan Desai — Wed, 16 May 2007 17:06:44 +0000

I should have asked this before but anyways what version of Oracle are you using?
First of all, you should not be using sys or system accounts for regular use. Create your own user and assign DBA priv. to it.

For DBMS_CRYPTO, log in as sys (as sysdba) and execute the same command. It works fine for me as sys (as sysdba).


[oracle@raclinux1 ~]$ sqlplus sys as sysdba
SQL*Plus: Release 10.2.0.1.0 - Production on Wed May 16 13:14:49 2007
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Enter password:
Connected to:

Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production

With the Partitioning, Real Application Clusters, Oracle Label Security, OLAP

and Data Mining Scoring Engine options
SQL> grant execute on dbms_crypto to scott;
Grant succeeded.
SQL>

Let me know.

By: sampathmadala

sampathmadala — Tue, 15 May 2007 23:02:27 +0000

Hi Kirtan,

I logged on as ‘system’ user name and executed the above statement for ‘Scott’ user. But i am unsuccessful i am getting the following error.

ORA:04042 Procedure,Function,Package or Package body does not exist.

By: Kirtan Desai

Kirtan Desai — Tue, 15 May 2007 19:05:32 +0000

Your user ID does not have EXECUTE permission on that function.

GRANT EXECUTE on sys.DBMS_CRYPTO to your user id

that should take care of it. Let me know.

By: sampathmadala

sampathmadala — Tue, 15 May 2007 18:50:52 +0000

Hi kirtan,

I read your post in informaticadevelopment yahoogroups on CRC55 function to find the change in a row with looking up into many columns at a time and your approach thru oracle pl/sql. I am in a learning stage and i am trying to execute the procedure you wrote above but i am getting an error while executing this. Can you please tell me how and where i should declare this function.

The error is:

PLS-00201: identifier ‘DBMS_CRYPTO.HASH’ must be declared