This is really wonderful thing! Thx for you work.

[quote=agentzh]
libdrizzle and libpq meet these conditions while oracle's OCI library
needs some hack for the requirement #1. So, you can expect ngx_oracle
and even ngx_pgsql to be announced here in the next few weeks or so,
and you'll see even more! If you'd join the fun, please don't hesitate
to drop us a line :)
[/quote]

Maybe this code helps:
http://www.total-knowledge.com/progs/mod_plsql/
http://www.sharemation.com/~dmcmahon/modowa.htm

Here is a two opensource apache modules to run pl/sql database procedures via the web.
Alternative to oracle modplsql, dont know about its licence, guess propietary one.