Re: Prolog to SQL ..??


russell kym horsell <kym@xxxxxxxxxxxxxxxxxxx> wrote in message
news:de3hd9$c2c$1@xxxxxxxxxxxxxxxxxxx
> W <wgw at cruzio dot com> wrote:
> > They look similar because they are based on relations. however there are
a
> > lot of differences in the details.
> [...]
>
>
> There are lots of nice tricks, but translating Prolog to SQL is not
> so strange if you just treat SQL like an assembly language ;-) and use
> bottom-up evaluation when appropriate.
>
>
> There are obviously times when a Prolog clause or 2 can be translated
> almost verbatim into some other relational calculus (SQL, loosley),
> but a more general purpose translation has to abandone the idea that
> the resulting SQL "looks like" it's doing what the original Prolog was
> doing and/or in much the same way.
>
>
> If you want something REALLY tedious, try Prolog to Yacc.

Dear,

The problem with Yacc is that he make only finite state automata,
and don't make a gramar.The raly good idea is to use a SQL
as assembly language,but the problem is how to translate,
a big heap of programs(FORMS and REPORTS) writen in
PL/SQL(ORACLE) or INFORMIX 4GL, or(I don't know
what of development tools DB2 uses....
If you know any of people working around this idea ginve mee
a conntact with them....


Thanks in advance, Robert !
robert.bralic@xxxxxxxxxxx



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