RETRIVING DELETED RECORDS :-
I'm frequently asked how to retrieve deleted records from
an unjournaled physical file when the deleted records have
not yet been removed from the file.
Utility UNDEL lets you undelete records in a physical file.
This public domain program is available in CISC and RISC
versions, and the complete source code is available for
download at:
UNDEL for AS/400 Save File (RISC):
http://www.as400network.com/sharewarefiles/undelris.zip
UNDEL for AS/400 Save File (CISC):
http://www.as400network.com/sharewarefiles/undel.zip
UNDEL for AS/400 Save File (Source code):
http://www.as400network.com/sharewarefiles/undelsrc.zip
The utility takes advantage of the fact that deleted
records in physical files are only flagged as deleted, and
the record data still exists until it is overwritten or the
file is reorganized with a utility such as RGZPFM. UNDEL
simply reads the deleted record, then reuses the record by
writing over it with the new record (thus eliminating the
flag for the deleted record).
Some homegrown and commercial utilities copy the file
containing undeleted records to a save file, then use a
program to read the save file, which contains live and
undeleted records, to a file to undelete the records. The
UNDEL utility is superior to the SAVF technique because
there's no need to copy the file to a save file, which is
especially important for really large files.
When run, UNDEL displays the physical file records in their
unformatted, raw text form. You can either position the
display to a given relative record number or use F19 or F20
to find the previous and next deleted record, respectively.
The utility also includes online help, which is almost
unheard of for free utilities.
Other utilities include the ability to undelete records.
You can use the RTVDLTRCD command in the old QUSRTOOL (no
longer supported by IBM). QUSRTOOL is now a commercial
product called TAA Productivity Tools (
http://www.taatool.com ). The free file editor WRKDBF has a
built-in undelete capability ( http://www.wrkdbf.com ), and
several commercial file editors can undelete records. For a
complete list of file editors, go to
http://www.sourcebook400.com, select "Programmer Tools"
under "Product Category," then select "File Editors."
- 0 Answers
- 14112 Views
- I also Faced
- E-Mail Answers
No Answer is Posted For this Question
Be the First to Post Answer
How to write record if no field or the field are different in physical file in rpgle ?
Interviewer asked me write down DDS for load all subfile .can anybody write dds
How do you proceed in case your active AS400 session has got disconnected suddenly, how can you get back to your session ? Is it possible??
How can we receive values from a called procedure in RPG?
How do you know if a record exists without doing a READ and CHAIN?
1.If *HIVAL SETGT is used what opcode is used to read a record? A:READ B:READPE C:CHAIN D:READP 2.How to pass numeric parameter to the rpg pgm from the command line? 3.What keyword is used on the rpg 4 definition specification to rename a subfile in an externally definition data structure? A:RENAME B;LIKE C:EXTNAME D:EXTFLD
How can we change element of compile time array?Can we do so
Suppose my file has 10 fields and I want to make the 2nd field zeros in all records. And assume I have millions of records and I dont want to read each record and update the desired field with 0. Any other way to do this in one step operation?
can anybody help me to solve this problem. the program that i m checking display error message saying "Record format for file AJDSPFFD does not match model file and decimal error. how to solve this problem. The AJDSPFFD is snapshot the AJTLOG that is the audit trail list.
if i have three programs progA,progB and progC .now i call progB from progA. but the progB does not exist . now i want to call progC instead of starting dump. how can we achieve this.
what is flat file?
if there is a module object , how to find the program object for this module object.Assume the module object name and program object name is not same.
RPG400 
