| 摘要 |
A data processing system including a processor device associated with memory device. The processor is capable of running user application programs capable of communicating 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: probabilistic access indexing file (PAIF) having a plurality of nodes and links (91). 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 (12345).</SDO AB>
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