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热词
    • 8. 发明授权
    • Temporally and spatially organized database
    • 临时和空间组织的数据库
    • US5794242A
    • 1998-08-11
    • US835553
    • 1997-04-08
    • Russell J. GreenJ. Christopher DaviesAlan J. PaxtonChristopher Whitaker
    • Russell J. GreenJ. Christopher DaviesAlan J. PaxtonChristopher Whitaker
    • G06F17/30
    • G06F17/30Y10S707/99953
    • During operation of a computer system, index records and data records of a data structure are organized in a hierarchical manner, with index records being at a higher level of the hierarchy than the data records referenced by the index records. While the data structure is manipulated, the data records are stored in a random access memory. Modifications made to the data structure are chronologically written to a disk storage in a bottom-first/top-last order of the hierarchy for persistent storage as a database. A back-up copy of the database is made by storing the data and index records of the database in a top-first/bottom-last order on a sequentially readable media. A temporal and spatial view of a portion of the database can be obtained by accessing the index records and the data records of the database or the back-up media in the top-first/bottom last order.
    • 在计算机系统的操作期间,以层次的方式组织数据结构的索引记录和数据记录,其中索引记录处于比索引记录引用的数据记录更高的层级。 当数据结构被操纵时,数据记录被存储在随机存取存储器中。 对数据结构进行的修改按时间顺序以层次结构的底部/最后一个顺序写入磁盘存储,作为数据库用于持久存储。 数据库的备份副本是通过将数据库的数据和索引记录以顺序可读介质的顶部/最下一个顺序存储来进行的。 数据库的一部分的时间和空间视图可以通过以顶部/最下一个顺序访问数据库或备份媒体的索引记录和数据记录来获得。