Hi Viewers can any body explain me how to update and ahange
the already existed data in physical file using subfile ?
please explain me with the code if possible?
- 1 Answers
- 4207 Views
- I also Faced
- E-Mail Answers
Answer Posted / dx
first read all records from physical file and move to subfile
then read change records from subfile format by opcode READC
in loop it will work
eg- readc sfl 56
*in56 downe *on
move dspfile physical file
updat sfl
enddo
| Is This Answer Correct ? | 7 Yes | 0 No |
Post New Answer View All Answers
what is the difference between do while and do until?
do you use message subfiles? What are the necessary keywords required coding a message subfile?
how can you display specific subfile page on the screen in unequal subfile?
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."
which program rpg or cl is efficent to update a transaction onto a database file and why ?
Program to read marks of 10 students for 4 subjects and compute and display total marks and status of each student in rpg
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.
Assume 2 users are using the same file and first user updates some record in the file. Will the 2nd user will be able to see the updated record or not?
what is data area and how it is used in rpg program ?
what do you mean by an input subfile, what are the keywords required?
what is the rpg system?
What is ment by record level identifier?
How Chain operation copies the record's data to the input buffer for the program?
How can we know running job is batch or interactive?
How do u design a physical file, when you have 2 Unique fields like for eg in A student file student ID and student examination no both are unique
