What are schemata

[Paul Prescod]

Tim Bray wrote:
> 
> I kind of think that the thing people have in mind in this group when
> they say "schema" is "expressions of syntactic constraints which can
> be verified mechanically" or some such.  

I would take out the word "syntactic." Databse schemata have much more
than syntactic constraints. Arguably, so do document schemata. Is IDREF 
a syntactic constraint? Not according to my intuition.

 Paul Prescod  - http://itrc.uwaterloo.ca/~papresco

Three things never trust in: That's the vendor's final bill
The promises your boss makes, and the customer's good will 
http://www.geezjan.org/humor/computers/threes.html



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