This example is optimised for Russian users, but you can, probably, replace russian country code by your own local equivalent.
Replace
#!/usr/bin/perl (in db.cgi)
by
#!/usr/bin/perl
use locale;
use POSIX qw (locale_h);
setlocale(LC_CTYPE, 'ru_RU.KOI8-R');
or : http://www.gossamer-threads.com/perl/gforum/gforum.cgi?post=81619;search_string=case%20sensitive%20search%20russian;guest=796747 Good Luck !
Replace
#!/usr/bin/perl (in db.cgi)
by
#!/usr/bin/perl
use locale;
use POSIX qw (locale_h);
setlocale(LC_CTYPE, 'ru_RU.KOI8-R');
or : http://www.gossamer-threads.com/perl/gforum/gforum.cgi?post=81619;search_string=case%20sensitive%20search%20russian;guest=796747 Good Luck !