Reuse Deleted Records

Reuse Deleted Records

Postby Greg Gammon » Thu Sep 13, 2007 2:50 pm

Ok...now that Ive solved all my browse issues (thanks James!!!), Im ready to tackle re-using deleted records to avoid that pesky downtime for packing.

Ive read a few posts but not sure I completely understand....

Right now im just doing the standard oDbf:append()....load()....save()

Can I get some code examples on how to implement finding deleted record, blanking, using Database object?

Thanks!
Greg
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Postby James Bott » Thu Sep 13, 2007 5:16 pm

Greg,

Already sent to your email.

Everyone, this is code for selected TData registered users only. The new code is beta-test code right now.

There are actually two new features, 1) automatic deleted record reuse (no more PACKing!) and 2) auto-incrementing primary-key fields. Almost no code changes will be required to implement these new features.

TData is an enhanced database class. For more information about TData go here:

http://ourworld.compuserve.com/homepage ... rogram.htm

Be sure to read the OOP articles too. They show how using database classes can really reduce your code and increase your programming power.

James
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Postby R.F. » Thu Sep 13, 2007 8:57 pm

Greg and James:

Is my understanding that xHarbour CDX driver already recicles automatically the deleted records.
Saludos
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Postby Greg Gammon » Thu Sep 13, 2007 9:19 pm

Well that would certainly be sweet if that is the case. Are you saying the oDbf:append() automatically seeks deleted records to reuse?

Also...what IS the difference in Harbour and xHarbour (im just using Harbour).

Thanks!
Greg
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Postby Enrico Maria Giordano » Fri Sep 14, 2007 9:27 am

RF wrote:Greg and James:

Is my understanding that xHarbour CDX driver already recicles automatically the deleted records.


Don't think so. It would be a serious incompatibility.

EMG
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