Interested to Buy Any Domain ? << Click Here >> for more details...
In a particular program one file is used where override
command is applied to a file, now this program calls
another program where we want to use the same file but
without override.How it can be done?
- 6 Answers
- 19690 Views
- Hexaware, I also Faced
- E-Mail Answers
Answer Posted / david lex
The question is somewhat ambiguous. The OVRDBF command
contains MANY parameters, all of which have a very
different impact on the file.
Very often the OVRDBF is used to access the same file in a
different library, but that is not always the case.
It is also of note that the TYPE of programs are not
mentioned - are they CL, CLLE, OPM RPG, ILE RPG, COBOL...
or a combination? It does make a difference, specifically
as to whether you even need to take this approach.
The most common scenario is a CL overriding a file/Lib1 to
file/Lib2 then calling an RPG/Cobol pgm. But in this
scenario the override is generally required in the
RPG/Cobol program.
Answer one does not address the override. Unless using
embedded SQL or some non standard technique, one must
include the file being used in the F-specs regardless of an
override scenario.
Answer two (with nuances) will have the desired effect, but
there are other things to consider before merely removing
the override.
Do you need the override in place upon return to the
calling program? If you do, you'll have to re-issue the
override.
Additionally, the call level on the DLTOVR command must be
the same that was on the original OVRDBF issued, otherwise
it will fail (albeit silently) with something
like 'Override not found at specified level'.
Defaults on the system in question also come into play.
What is your default activation group?
There are a variety of ways to handle this, each with
strengths & weaknesses.
Embedded SQL, new activation groups, using a QUALIFIED file
opening, call stored procedures, exported procedures in a
service program, etc.
It VERY much depends on the original intention of the file
override to begin with.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
give an eg of ACQ-(ACQUIRE),BIT OFF,BIT ON,DEALLOC,DUMP,FEOD,FORCE,MHHZO,MHLZO,MHLLZO,MLHZO,REL,RESET,TESTZ,TESTB,TESTN----GIVE SMALL EXAMPLE TO THE OPCODES...TO UNDERSTAND FUNCTIONING...........
what is data area and how it is used in rpg program ?
1. If there are two programs using same file and 2 users are using the file at the same time and what can be done to allow them both to access? 2. How can remove lock from the file for accessing it by both users?
how can you display specific subfile page on the screen in unequal subfile?
what is the use of sflnxtchg?
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."
what is a rpg?
Program to read marks of 10 students for 4 subjects and compute and display total marks and status of each student in rpg
When we have a file with Duplicate records and I want to read the unique record from the file. For example a file containing Emp Name as 'Ram' and there are 3 entries of it. So how to read a unique record from File?
Set on command is used for closed all opened files , initialize var and release resource , return cmd is used for return to calling program but my req. Is dnt close opened files and resource must released while doing transactions , how can i do this...?
How to call one program from another program in RPG? please help me with the code
What is the diff bw PF/LF Name and their Record format name? what is restriction in record format then file name?
what was the robotech rpg?
How can we override a file during runtime in rpg?
How can we know running job is batch or interactive?
