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Object Oriented Database Learning Center

Data Fusion - Navigation & Inheritance Mechanisms

Data Fusion - integrating complex data from multiple sources

Navigation & Inheritance Mechanisms

FASTER NAVIGATION - In this example, an RDBMS query that needs to find all of the Suspects associated with an Incident would perform 2 * N accesses to the B-Tree indices (where N is the number of Suspects) and 2 * N logical [row] reads into the Join table and the Suspect table. bjectivity/DB only needs 1 B-Tree access and (1 + N) logical reads.

Data Fusion

INHERITANCE - As the inheritance class hierarchy grows deeper the relational database has to create more tables and execute more JOINs, so performance degrades. Objectivity/DB handles inheritance deep within its kernel to ensure high and consistent performance.


Object Oriented Database Learning Center