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Home -> Community -> Usenet -> c.d.o.server -> Re: Field Order via Oracle ODBC
Brad Pybus <brad_pybus_nospam_at_hotmail.com> wrote in article
<%%v73.1733$sk1.2500_at_client.news.psi.net>...
> We never use multi-field primary keys.
But how can you avoid so doing?
In any master/detail relationship, the detail record will normally need a
composite primary key, namely:
* the master key of the parent table, plus
* the extra field which distinguishes the child records for a given master.
For example:
* Invoice Header -primary key = InvoiceNumber;
* Invoice Detail - primary key = (InvoiceNumber, InvoiceLineNumber).
Yes? No?
TC
(No email)
Received on Wed Jun 09 1999 - 11:27:32 CDT
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