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."
No Answer is Posted For this Question
Be the First to Post Answer
how can we know running job is batch or intractive ? i need all the possibilites.........plz help me
What hapens when we use CPYF command to copy a LF? On which PF will it be dependent???
if there is pf in two libraries and there is a logical file based on the PF, how to find the pf on which the pf is based.
suppose i i am changing / updating record of subfile and i want to change the record in reverse order . means i want to change the bottom record first and so on through readc . how i do it please any one explain .
How to identify the object has compiled with the debug view as *source without using STRDBG?
what is program status data structure?
1..Write an sql query to find the employee name who is having 2 phone numebr? 2.Write an sql query to the the second highest salary of the employee?
what happens when sflsiz = sflpag? What are the advantages and disadvantages?
Anybody know the difference of primary file and full procedural file
Suppose we add one field in physical file and this physical file is used by several programs.how do we know which program is using that file? What are the impact analysis.
Q:Hi all,i want accurate answer with code using in built functions.please sent me code as soon as posible. I have program nmed PGM1 which '' RETRIEVE Current production date''should correctly default the production date for the user who is issuing raw materials to the manufacturing.The production date can be different from the celendra date. However, the program does not make the correct adjustment for all manufacturing plants. there is a parameter which determines the production start time e.g. 07:00 if the system time precedes this,the program subtracts one from the celendra day.This work fine when the celendar day starts after production day as it does in England,the system should be adding one to the celendar day during the overlap. unfortunately the program was desined to assumed the celendar day always starts before the production day. Change required in the program: Change the PROGRAM PGM1 to use the new parrameter to decide whether to add or subtract 1 from the celendar day when determining the production date.
can I touch the array during treatments?