Table 2 Comparison of the time required for SQL and SPARQL query execution
Number of tables | Inheritance relationship | Length of the path | Number of results | SQL query (seconds, ± 0.1) | SPARQL query in D2R Server (seconds, ± 0.1) |
|---|---|---|---|---|---|
90 | no | 4 | 860 | 0.4 | 1.4 |
90 | no | 4 | 1456 | 0.4 | 1.4 |
90 | no | 2 | 2055 | 0.8 | 2.3 |
90 | yes | 4-3-2-6 | 8071 | 1.1 | 4.2 |
90 | no | 3 | 12302 | 2.3 | 4.8 |