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** Reply to message from "Dare Obasanjo" <firstname.lastname@example.org> on Mon, 21 Oct
2002 03:58:32 -0700
> This has little to do with the differences between relational and XML
> querying. All you've pointed out is that XML queries are typically done
> against a "view" while SQL queries are typically run against an actual
> database schema. A query against XML can be similarly tightly coupled if
> done against an XML repository (i.e. a native XML or XML-enabled DBMS)
> as can a SQL query be loosely coupled if performed against a SQL view.
Sorry, I should have written "SQL/XQuery" instead of "SQL". From the point of
view of the discussion, XQuery is as likely to be as tightly bound to physical
schemas as SQL. I was talking more of declarative messaging-style XML queries
that do not implement a formal query language.
Anthony B. Coates, Information & Software Architect
MDDL Editor (Market Data Definition Language)