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How do you find out whether a record is present in the
physical file without reading the file?
for Example Employee No: 100 in an Employee master.How do
we find out whther 100 is present in Employee master
without reading the file?
- 11 Answers
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Answer / samul paul
With the help of SETLL using EQ indi,we can check the
existance of record wihtout reading the file.
| Is This Answer Correct ? | 35 Yes | 0 No |
Answer / kaka halwai
100 SETLL Employee master
IF %EQUAL(Employee master)
record is found
Else
Record is not found..
Endif
:-)
| Is This Answer Correct ? | 5 Yes | 0 No |
Answer / rashmimalpani
You can do SETLL and then use %found to check whether the
record exist in the file.
Chain itself does the SETLL operation on the file and reads
the subsequent record if match is found.
| Is This Answer Correct ? | 14 Yes | 11 No |
Answer / ld123q44
SETLL described by everyone above is the answer provided the
file has an index by Employee No.
| Is This Answer Correct ? | 3 Yes | 1 No |
Answer / spmk
Hi.....
With the help of 'File information data structure'
we can find the existence of record in physical file.
| Is This Answer Correct ? | 4 Yes | 3 No |
Answer / prasanna
If you Request was thru program then you can do it by SETLL
else DSPPFM or DSPF command
| Is This Answer Correct ? | 1 Yes | 6 No |
*loval setll file
read recor 70
in indicator on norecords in file ,else records in file
| Is This Answer Correct ? | 0 Yes | 5 No |
Answer / srinivas
100 chain filename
if %found
dsply the record
else
display the norerord
endif
or
| Is This Answer Correct ? | 1 Yes | 6 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."
How to read a record from file where there is multiple record occurrence is available?
HI,1: What is the function of 'SETON LR' AND '*INLR=*ON ? 2:Can we used "seton lr" OR "*INLR = *ON" in between the program code ? 3:if yes then according to there function the code which is written acter seton lr/ *inlr should not be execute . Can any one tell me why those code get executed ?
Can we found a record existance in a file w/o reading the file?
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