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Restoring deleted records
Message
De
22/02/2006 01:31:00
 
 
À
21/02/2006 16:29:28
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Versions des environnements
Visual FoxPro:
VFP 8 SP1
OS:
Windows XP SP2
Network:
Windows 2000 Server
Database:
Visual FoxPro
Divers
Thread ID:
01097592
Message ID:
01098017
Vues:
17
>>Hi Fred, Thank you. Maybe i could be wrong.
>
>>Hi John. I believe a PACK makes a copy of the original table but without >the records marked for deletion. Then deletes the original table and >renames the new table to the original name. If so, then a file undelete >program could theoretically recover the deleted file providing the disk >space has not been used for other purposes in the meantime.
>
>Jos, AT Least, somebody with open mind, yes theoretically if no process have writed the sector of packed file it can be restored. I found the next code on my old downloads, its called unzap, it supposed to recover all zapped records, i was testing it but something is wrong.

John, I did a quick test with a file of about 3500 records with 1000 deleted records. I did a pack. Then I ran DiskInternals Uneraser and it found and restored the original dbf file. All deleted record intact and the file was back to normal. This assumes that you of course do not overwrite the sectors where the deleted file is.

www.diskinternals.com
In the End, we will remember not the words of our enemies, but the silence of our friends - Martin Luther King, Jr.
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