H-trees: A Dynamic Associative Search Index for OODB

@inproceedings{Low1992HtreesAD,
  title={H-trees: A Dynamic Associative Search Index for OODB},
  author={Chee Chin Low and Beng Chin Ooi and Hongjun Lu},
  booktitle={SIGMOD Conference},
  year={1992}
}
The support of the superclass-subclass concept in object-oriented databases (OODB) makes an instance of a subclass also an instance of its superclass. As a result, the access scope of a query against a class in general includes the access scope of all its subclasses, unless specified otherwise. To support the superclass-subclass relationship efficiently, the index must achieve two objectives. First, the index must support efficient retrieval of instances from a single class. Second, it must… CONTINUE READING
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