Global Patent Index - EP 1546921 A2

EP 1546921 A2 20050629 - METHODS AND APPARATUS FOR QUERYING A RELATIONAL DATA STORE USING SCHEMA-LESS QUERIES

Title (en)

METHODS AND APPARATUS FOR QUERYING A RELATIONAL DATA STORE USING SCHEMA-LESS QUERIES

Title (de)

VERFAHREN UND VORRICHTUNGEN ZUM ABFRAGEN EINES RELATIONALEN DATENLAGERS UNTER VERWENDUNG SCHEMALOSER ABFRAGEN

Title (fr)

PROCEDES ET APPAREIL PERMETTANT D'INTERROGER UNE MEMOIRE DE DONNEES RELATIONNELLES A L'AIDE D'INTERROGATIONS SANS SCHEMA

Publication

EP 1546921 A2 20050629 (EN)

Application

EP 02784576 A 20021121

Priority

  • US 0237729 W 20021121
  • US 33205301 P 20011121
  • US 33221901 P 20011121

Abstract (en)

[origin: WO03044634A2] The invention provides, in one aspect, a method of searching an RDF triples data store of the type in which the triples are maintained in accord with a first storage schema. The method includes inputting a first query specifying RDF triples that are to be identified in the data sore. That fist query assumes either (i) that the triples are stored in a schema-less manner (i.e., with no storage schema) or (ii) that the triples are maintained in accord with a second storage schema that differs from the first. The method further includes generating, from the first query, a second query that specifies those same RDF triples, yet, that reflects the first storage schema That second query can be applied to the RDF triples data store in order to identify and/or retrieve the desired data.

IPC 1-7

G06F 17/30

IPC 8 full level

G06F 17/30 (2006.01)

CPC (source: EP)

G06F 16/2452 (2018.12); G06F 16/86 (2018.12)

Citation (search report)

See references of WO 03044634A2

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

DOCDB simple family (publication)

WO 03044634 A2 20030530; WO 03044634 A3 20031211; AU 2002346510 A1 20030610; AU 2002346510 A8 20030610; AU 2002365577 A1 20030610; CA 2471467 A1 20030530; CA 2471468 A1 20030605; EP 1483688 A1 20041208; EP 1546921 A2 20050629; WO 03046769 A1 20030605

DOCDB simple family (application)

US 0237729 W 20021121; AU 2002346510 A 20021121; AU 2002365577 A 20021121; CA 2471467 A 20021121; CA 2471468 A 20021121; EP 02784576 A 20021121; EP 02791310 A 20021121; US 0237727 W 20021121