Re: Decomposition Question

From: Alan <alan_at_erols.com>
Date: Fri, 9 May 2003 10:13:55 -0400
Message-ID: <b9gd30$ii504$1_at_ID-114862.news.dfncis.de>


Why don't you just give us the professor's email address, and we'll submit the naswers directly?

"convo" <member29171_at_dbforums.com> wrote in message news:2851050.1052328386_at_dbforums.com...
>
> When I have a universal relation schema like R = {A,B,C,D,E,F,G,H,I,J}
> and the following functional dependencies defined on R: AB->C;
> A->DE;B->F; F->GH; D->IJ.
>
> How do I find a decomposition D1= {R1, R2, , Rn}, such that each Ri is
> in 3NF, and D1 has dependency-preserving property, but not lossless
> join property?
>
> --
> Posted via http://dbforums.com
Received on Fri May 09 2003 - 16:13:55 CEST

Original text of this message