A system and methods for rapid unloading and reorganization of heirarchical databases. Overflow and a window of blocks are progressively read into memory. Unloading proceeds as the scan cylinders window moves ahead. The reading of blocks stays about scan cylinders ahead of the unload. As a segment is unloaded, its space is converted to free IMS space and when appropriate, combined with adjacent free space already in the block. Thus about a window behind the unload point in the database, all of the segments in a block will have been converted to free space making the block one unit of free space.
RELATED APPLICATIONS
This application is a continuation of U.S. Ser. No. 09/548,156, filed Apr. 13, 2000 now U.S. Pat. No. 6,622,142, which claims priority from U.S. Provisional Patent Application No. 60/129,119, filed on Apr. 13, 1999, entitled "IMS Database Utilities" both of which are hereby incorporated in their entirety by reference.
A system and method for storing and processing words of a vocabulary that represents all concepts. The words are divided into a number of fields, each field having meaning with respect to the meaning of the word. The fields are stored and processed in a manner that allows the meaning of each field to be recognized by machine. The meanings of each field are processed to interpret the meaning of each word. This vocabulary of words as stored and processed by machine is particularly useful in fields such as artificial intelligence, natural language processing, and database processing.
A system and methods for rapid unloading and reorganization of hierarchical databases. Overflow and a window of blocks are progressively read into memory. Unloading proceeds as the scan cylinders window moves ahead. The reading of blocks stays about scan cylinders ahead of the unload. As a segment is unloaded, its space is converted to free IMS space and when appropriate, combined with adjacent free space already in the block. Thus about a window behind the unload point in the database, all of the segments in a block will have been converted to free space making the block one unit of free space.
