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Frequently Asked Questions

 
   
  1.

What is DataNumen Oracle Recovery?

   
DataNumen Oracle Recovery(DORCR) is a powerful tool to repair corrupt DBF files and Self Extracting files(SFX). It can recover your data in DBF archives as much as possible, thereby minimizing the loss in file corruption.
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  2.

Which types of DBF and SFX can DataNumen Oracle Recovery be used with?

   
DataNumen Oracle Recovery(DORCR) supports all versions of DBF format (up to DBF File Format Specification Version 6.2) and all kinds of SFX files created by different applications.
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  3.

How can I determine whether DORCR can repair my DBF file successfully, according to the results generated by the demo version?

   

Please just use the demo version to repair your DBF archive normally in the "Repair" tab. If it can be repaired successfully, you will see a message box after the repair process, where you can click the "Show Repair Report" button and see a report of all the recoverable items in the DBF archive. For every item, the report will display its file name, file size, the packed size and its recoverable status.

According to these information, you can know whether DORCR works on your DBF archive and order the full version to get the actually repaired archive.

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  4.

The fixed DBF file still has errors when I try to extract it?

   

If DBF data are corrupted partially, different applications, such as DORCR and WinZip may possibly use slightly different algorithms to extract the corrupted data. So if items in a DBF file are partially corrupted, it is better to unzip the fixed DBF file with DORCR again. To do this, please:

  1. Input your corrupted file name to 'Select DBF or Self extracting file to be repaired' edit box.
  2.

Input a filename with '.exe' extension to the 'Output fixed file' edit box.

  3.

Click "Start Repair", DORCR will repair the corrupted DBF file and generate a new self-extracting DBF file for it.

  4.

Run the self-extracting DBF file and unzip the files in it.

For example, you want to repair a file named MyFiles.DBF, then if you specify the "Output fixed file" with an '.exe' extension, for example, MyFiles_fixed.exe, DORCR will repair the DBF file and generate a self-extracting DBF file named MyFiles_fixed.exe. This self-extracting DBF file uses the same decompression engine as DORCR, so you can extract the partially corrupted items by executing it.

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  5.

How to repair a spanned DBF file?

   

To repair spanned DBF files(assume the file name is 'myspan.DBF'), please do as follows:

  1. Start DataNumen Oracle Recovery and click "Repair Spanned/Split File" tab.
  2. Click "Add A Part" button to add myspan.DBF on the first DBF disk to the list.
  3.

Click "Add A Part" button to add myspan.DBF on the second DBF disk to the list.

  4.

Repeat step 3 until myspan.DBF on all the DBF disks have been added into the list. Please note you must preserve the order of the parts when adding them to the list. That is, you need to first add myspan.DBF on the first disk, then the one on the second disk, and so on. If one part is missed or corrupt, then you can just ignore it and continue with the next one.

  5.

After myspan.DBF on all the DBF disks have been added, specify the fixed file name in "Output fixed file as:" text box, for example, myspan_fixed.DBF.

  6. Click "Start Repair" button to start the repair process.
  7.

After the repair process, a new fixed file named myspan_fixed.DBF is generated, which contains the data of all parts of the spanned file. You can open it with popular DBF utilities, such as WinZip, WinRAR, etc.

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  6.

How to repair a split DBF file?

   

The internal data and structures of split DBF files are identical to those of spanned DBF files. The only differences between them are the names of the parts of the file, that is:

Each part of a split DBF file has a different extension (such as 'mysplit.z01', 'mysplit.z02', etc., and 'mysplit.DBF' for the last part). While all parts of a spanned DBF file have the same name (such as 'mysplit.DBF').

Therefore, the way to repair your split DBF files is just similar to that for spanned DBF files(assume your split file names are 'mysplit.z01', 'mysplit.z02', ..., 'mysplit.DBF'), as follows:

  1. Start DataNumen Oracle Recovery and click "Repair Spanned/Split File" tab.
  2. Click "Add A Part" button to add mysplit.z01 to the list.
  3.

Click "Add A Part" button to add mysplit.z02 to the list.

  4. Repeat step 3 until all the split DBF files, i.e. mysplit.z01, mysplit.z02, ..., mysplit.DBF, have been added into the list. Please note you must preserve the order of the parts when adding them to the list. That is, you need to first add mysplit.z01, then mysplit.z02, and so on. If one part is missed or corrupt, then you can just ignore it and continue with the next one. In addition, please make sure the last split file, i.e. mysplit.DBF, is also added in the end.
  5. After all the split DBF files have been added, specify the fixed file name in "Output fixed file as:" text box, for example, mysplit_fixed.DBF.
  6. Click "Start Repair" button to start repairing the split file.
  7.

After the repair process, a new fixed file named mysplit_fixed.DBF is generated, which contains the data of all parts of the split file. You can open it with popular DBF utilities, such as WinZip, WinRAR, etc.

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  7.

Why did DataNumen Oracle Recovery fail to repair my DBF file?

   
Contact our technical support: support@datanumen.com . If possible, please also save the repair log into a file (make sure the "Include System Information" option in the save file dialog is selected) and attach it to your e-mail.
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  8.

How can I order the full version of DataNumen Oracle Recovery?

   

The demo version will show a report of all the recoverable items in the DBF archive, but will not output the fixed archive. To get the actual repaired DBF archive, you need to order the full version. The price for the full version (single license) is USD 49.95.

Please click here to order now or get more ordering and payment information. We accept all major credit cards, Maestro (UK), giropay (Germany), iDEAL (Netherlands), Bank/Wire transfer, WebMoney, Purchase orders, PayPal, Checks and Direct Debit.

If your company or institution is interested in licensing DORCR for several users, you can save a lot of money by purchasing a volume license.

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  9.

What happens after I send in the order?

   
In general, you can download the full version of DORCR immediately after sending the online order form.

If you do not get your full version... or if you've lost it (Hey, it happens! :) ... please email us at sales@datanumen.com . Please include your name, address, email address, and order confirmation number (if you have it). We will be happy to help you.
    We will be happy to help you.
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