The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 29, 2001
Filed:
Mar. 24, 1998
Moshe Shadmon, Tel-Aviv, IL;
ORI Software Development Ltd., Tel-Aviv, IL;
Abstract
A data processing system including a processor device associated with memory device. The processor is capable of running user application programs to communicate with a database management system that includes database file management system, for accessing data records stored in the memory. The database file management system includes: a probabilistic access indexing file (PAIF) having a plurality of nodes and links. The leave nodes of the PAIF are associated with data records accessible to the user application program. A portion of the data record constitutes a search-key. Selected nodes in the PAIF represent an offset of a search key portion within a search key and link(s) originated from each node among the selected nodes. For each of the selected nodes, except for the leaf node, there exists a subordinated node having an offset larger than the offset of the selected node. A search path in the PAIF commences from a root node and ends at a leaf node which is associated with a given search key. The search path defines a first series of I search key portion values at the corresponding I offsets which conform to a second series of I search key portions at the same I offsets within the given search key.