Hi Jerry,
*Applications should not be logicaly impaired when the physical storage
or
access ethods change.*
Changing the storage engine for tables, for example from a transactional
to non-transactional engine, changes the database logic.
[JS] Is that really an example of Codd's rule #8? It is a higher-level
change than simply going from a hard drive to a RAM drive to magnetic
tape,
any of which could conceivably be used with any of the storage engines.
I think you're right, but a "non transactional storage engine" fails on
a higher rule: namely the atomicy rule.
A non transactional engine is of near no use.
With regards,
Martijn Tonies
Upscene Productions
http://www.upscene.com
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