can we use cl programming to update or delete physical files
Answer Posted / ismail
Yes, With the help of 'RUNSQLSTM' command, we can able to
update/insert/delete record in PF.
Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
which program rpg or cl is efficent to update a transaction onto a database file and why ?
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."
Suppose we have one database file and it is used by 5 programs and in 3 program we have to add some records in datbase file s what is the impact on other program?
What is difference between bind by copy and bind by reference?
Please tell me how to read the records from a file with load an array of size with error conditions(The logic answer for this question is ARR is array of 99 elements Z-ADD 0 IDX *LOVAL SETLL FILE READ FILE 99 *IN99 DOWEQ *OFF IDX ANDLT 99 ADD 1 IDX MOVE FIELD ARR,IDX READ FILE 99 ENDDO).So,Please give me the complete of this code.
are there any useful c runtime apis that I can call from rpg iv?
can I touch the array during treatments?
what is an online rpg?
explain sflclr, sflend, sfldlt, and sflcsrrrn?
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...?
do you use message subfiles? What are the necessary keywords required coding a message subfile?
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?
how can I tell when to replace the array?
how does the rpg element work?
Interviewer asked me write down DDS for load all subfile .can anybody write dds