Bill Walton wrote:
>The relational model was and is important for one fundamental reason: it
>guarantees that any and all data you put in can be retrieved via a query (as
>opposed to "walking the tree"). Independent of any of their other
>advantages, no other storage model can accurately make that claim.
I am not quite sure what you are trying to say here, but I don't think that
what you said
is quite correct. There is no hard and fast line between what can be done via
non-procedural specification (query) and what can not. The difference is in the
implementation of an abstraction of the low level process of "walking the tree"
so that it
can be carried out from a simple specification ("query").
---------------------------------------
Jim Self
Systems Architect, Lead Developer
VMTH Computer Services, UC Davis
(http://www.vmth.ucdavis.edu/us/jaself)
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