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Language peer sets for rdfDB:
Designed 1998 ↑
1990s languages ↑
Internet↑
New internationlism↑
rdfDB(ID:8296/)
alternate simple view
Designed 1998
Netscape's rdf querying language
Samples:
0 > insert into test1 (name DanC 'Dan Connolly') > 0 > select ?x from test1 where (worksFor ?x W3C) (name ?x ?y) > ?x = DanC ?y = 'Dan Connolly' ?x = DanB ?y = 'Dan Brickley' 0 >
#!/usr/bin/perl use DBI; use CGI qw(:standard); print header; my $term = param('term'); my $db = param('db'); my $dbh= DBI->connect("DBI:rdfdb:localhost", "root", 0); print " All arcs out of ".$term." in database ".$db."\n"; print " Property | Value | \n";
my $query = $dbh->prepare("select ?prop ?value from dmoz where (?prop ".$term." ?value) output tab-limited>"); $query->execute(); $query->bind_columns(\$prop, \$value); while ($query->fetch()) { $pv = $value; $value =~ s/#/\%23/g; print "".$prop." | ".$pv." | \n"; } $query->finish();
print "
"; print " All arcs into ".$term." in database ".$db."\n"; print " Property | Value | \n";
$query = $dbh->prepare("select ?prop ?value from dmoz where (?prop ?value ".$term.") output tab-limited>"); $query->execute(); $query->bind_columns(\$prop, \$value);
while ($query->fetch()) { $pv = $value; $value =~ s/#/\%23/g; print "".$prop." | ".$pv." | \n"; } $query->finish(); print "
";
References:
Guha, R. (1998) Guha, R. V. ; O. Lassila, E. Miller, and D. Brickley. Enabling inferencing. In The W3C Query Languages Workshop, 1998
Online copy
Guha, R. (1998) Guha, R. V. RDFDB query language
Online copy
Backup copy at Internet Archive
Abstract
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