Efficient traversals over hierarchical data and indexing...

Data processing: database and file management or data structures – Database design – Data structure types

Reexamination Certificate

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C707S793000, C715S252000

Reexamination Certificate

active

10379002

ABSTRACT:
A method for encoding hierarchical data stored in an index, partitioned into blocks, over keys representing the data. For every key K representing a record R in the index, the key of the children records of record R are prefixed with K. The method includes traversing to a first R record represented in the index, traversing from the record R to the next sequential R such that the path in the index from the position representing R to the position representing the next sequential R does not include information relating to the children of R. Next, repeating the latter operation for 0 or more R records, and for any 0 or more particular R records, traversing from the particular R to its children. The index constitutes a balanced structure of blocks.

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