Have a look at SQL structures, or even go back to Codd's original papers (on
relational databases).
Look at the current SQL standard (SQL-99?). You may find something in BN
format, which should help.
-----Original Message-----
From: Clarke, Agnes [mailto:Agnes_Clarke@nl.compuware.com]
Sent: 20 December 2000 10:15
To: general@xml.apache.org
Subject: patterns in XML
Hi everyone,
I'm looking for a standard way of expressing procedural constraints on XML
streams. Specifically, I need an XML grammar to express relationships and
element patterns (for example, a way of validating that an input stream is
generically tabular).
I've made a start on my own grammar, but I want to know if anyone has done
this already, before spending more time on the problem.
Thanks,
Agnes Clarke
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