I'd make "MemberID", "YearID" and "PostID" the primary key for the table.
Rod
--- In MS_Access_Professionals@yahoogroups.com, Robin Chapple <robinski@...> wrote:
>
> I have a table which includes the fields: "MemberID" and "YearID" and "PostID".
>
> How do I prevent duplication of the combination of the three fields
> berceuse data entry is not by Access form?
>
> Data entry is on a remote server by ASP pages.
>
> Many Thanks.
>
> Robin Chapple
>
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