On robustness of B-trees

A method is presented to detect index corruption and pointer corruption in B/sup +/-trees. The method uses the semantic information of indices and requires no extra pointers to be added to the data structure. Previous research on the robustness on B-trees has considered index corruption and pointer corruption separately and required extra pointers to be added to the data structure to achieve detectability, and correctability. The proposed method can detect and identify a single semantic or structural error.<
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