On Wed, 1 Dec 2004 16:21:27 -0500, Olson, Curtis B <[EMAIL PROTECTED]> wrote:
>
> > From: Jeff Grigg [mailto:[EMAIL PROTECTED]
> > Sent: Wednesday, December 01, 2004 4:13 PM
>
> > Consider:
> > Suppose the Customer class was stored in the CUSTOMER table, and the
> > Employee class in the EMPLOYEE table. Why is the source of this
> > cross-reference data an XML file, rather than a general rule?
> >
> > Same for columns: Suppose the 'firstName' attribute is stored in
> > the 'FIRST_NAME' column. If you had naming standards and rules,
> > you'd hardly need a cross-reference file.
>
> OK, but....
>
> Legacy databases are not always so clean. Sometimes the attributes of a
> single object may come from more than one source table (or even from
> non-DBMS sources).
>
> Cheers,
> Curtis
>
And I don't think that a 1 to 1 relationship between tables and
classes is the best way to go.
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