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how we retrieve records without using key field (ex:name)
from Physical File through RPG in as/400?
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Answer / kumar vikas
Ffile1 I F E DISK (no keyfield is given)
C
C *start setll file1
OR
C 1 setll file1
C
C read file1
C dow not %eof
C id dsply
C name dsply
C read file1
C enddo
| Is This Answer Correct ? | 15 Yes | 1 No |
Answer / ttom
Read the file till EOF and check field values using a
condition in a the loop.
| Is This Answer Correct ? | 3 Yes | 2 No |
Answer / anand
but atleast there should be a keyfield to perform setll right ?
| Is This Answer Correct ? | 5 Yes | 5 No |
Answer / sujit kumar biswal.
Witout key u can use either SETGT or SETLL.And witought key
these two opcodes work only folloing conditions.
1.U can spesify any sequence no in factor1
2.Also *hival is work with it.
3.Field name work but only for intiger.
so code ur programe as answer4,but just change the *loval
to any sequence no or *hival then readp or any int field
one ex.
F PF/LFNAME IF E DISK
C *HIVAL SETLL RECORDFORMATNAME/PROG.NAME
C DOW %EOF
C READP RECORDFORMATNAME/PROG.NAME
C FIELDNAME1 DSPLY
C FIELDNAME DSPLY
C ENDDO
C EVAL *INLR=*ON
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / ak
use chain and put factr1=rrn number (line number)
and u hit the dirct
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / gk
We can read the records from the file directly without any
key field.
*LOVAL SETLL XXXX
READ XXXX
Put it in the DO loop and check for the EOF.
Hope you have got the answer.
| Is This Answer Correct ? | 9 Yes | 11 No |
Answer / ld123q44
The question is how you retrieve records from externally
defined files without using a key.
You can do this by designating the file as a primary file in
the program.
| Is This Answer Correct ? | 0 Yes | 4 No |
Answer / syam
Yes, You can retrieve records from External Physical File
with key.
1.Specify PF as a program described file in RPG Program.
FFilNam IF F 80 6AIDISK KEYLOC(7)
(80=Record Lenght, 6=Key Lenght, (7)=Key starting
position)
2. IFilNam KD 01 1 C0 2 C1
I 7 12 NAME
(KD=Sequence,01=Record Id,1&2=Starting position,C=Any
Character,0=Value. Means In my file each record is having 1
and 2 posion = 01 to identify record, 7 to 12 =Name)
3.C MOVE 'SYAM' NAME
C 'SYAM' CHAIN FilNam
C N41 MOVEL NAME CUSNME
C 41 MOVEL *BLANK CUSNME
Try this code.
| Is This Answer Correct ? | 4 Yes | 10 No |
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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."
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