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41. 发明申请

US20050273476A1 Automated disk-oriented backups 有权
标题翻译：自动化面向磁盘的备份
公开(公告)号：US20050273476A1
公开(公告)日：2005-12-08
申请号：US10849474
申请日：2004-05-18
申请人： Steven Wertheimer , Juan Loaiza , Muthu Olagappan
发明人： Steven Wertheimer , Juan Loaiza , Muthu Olagappan
IPC分类号： G06F12/00
CPC分类号： G06F11/1458 , G06F11/1456
摘要： Space on disk, designated for storage of recovery files is automatically managed so as to not exceed a predetermined limit. Specifically, after creation of information to be stored in a new recovery file, an automatic check is made to see if creation of the new recovery file will cause the space to exceed the limit. If so, at least one recovery file currently in the space is deleted. The new recovery file is automatically created, when the space occupied by existing recovery files becomes sufficiently small to accommodate the new file without exceeding the limit. The recovery file(s) deleted to make room for the new recovery file may be automatically identified in accordance with a user-specified policy. Such a policy may be used to automatically identify a subset of recovery files available for deletion, well ahead of time, i.e. prior to a need for deletion arises.
摘要翻译：指定用于存储恢复文件的磁盘上的空间被自动管理，以便不超过预定的限制。具体来说，在创建要存储在新的恢复文件中的信息之后，进行自动检查，以查看新的恢复文件的创建是否会导致该空间超出限制。如果是这样，目前在空间中的至少一个恢复文件被删除。当现有恢复文件占用的空间足够小以适应新文件而不超出限制时，将自动创建新的恢复文件。可以根据用户指定的策略自动识别为新恢复文件腾出空间的已恢复的恢复文件。这样的策略可以用于自动识别可用于删除的恢复文件的子集，提前提前，即在需要删除之前出现。

42. 发明授权

US5845296A Method and apparatus for implementing segmented arrays in a database 失效
标题翻译：在数据库中实现分段数组的方法和装置
公开(公告)号：US5845296A
公开(公告)日：1998-12-01
申请号：US677771
申请日：1996-07-10
申请人： Amit Jasuja , Roger Taranto , Juan Loaiza , Gianfranco Putzolu
发明人： Amit Jasuja , Roger Taranto , Juan Loaiza , Gianfranco Putzolu
IPC分类号： G06F12/02 , G06F17/30
CPC分类号： G06F12/0223 , Y10S707/99931 , Y10S707/99932 , Y10S707/99933 , Y10S707/99942 , Y10S707/99943 , Y10S707/99945 , Y10S707/99956
摘要： A method and apparatus for implementing segmented arrays in a database system. According to one embodiment of the invention, rather than allocating a contiguous block of memory for each array, the memory for storing at least selected arrays is broken into smaller pieces of memory referred to herein as memory segments. When the memory for an array is broken into memory segments, the array is referred to herein as a "segmented array." Each memory segment associated with a segmented array is divided into one or more memory areas, each of which represent an element of that array. The memory segments associated with a segmented array need not be contiguous. According to another aspect of the invention, the number of segments allocated for a segmented array can be increased or decreased during execution. According to yet another aspect of the invention, only some of the memory segments required to store a segmented array are initially allocated. The remainder of the memory segments required to store the array are allocated on an as needed basis. According to another aspect of the invention, database systems may implement all or only some arrays as segmented arrays. In a database system that supports both segmented and contiguous arrays, whether the memory for a particular array is segmented or contiguous can depend on any number of factors.
摘要翻译：一种用于在数据库系统中实现分段数组的方法和装置。根据本发明的一个实施例，不是为每个阵列分配连续的存储块，而是用于存储至少所选择的阵列的存储器被分解成这里被称为存储器段的更小的存储块。当阵列的内存被分解成内存段时，阵列在这里被称为“分段阵列”。与分段阵列相关联的每个存储器段被分成一个或多个存储器区域，每个存储器区域表示该阵列的元件。与分段数组相关联的内存段不必是连续的。根据本发明的另一方面，在执行期间可以增加或减少为分段阵列分配的段数。根据本发明的另一方面，最初仅分配存储分段阵列所需的一些存储器段。根据需要分配存储阵列所需的其余内存段。根据本发明的另一方面，数据库系统可以将所有或仅一些阵列实现为分段阵列。在支持分段和连续阵列的数据库系统中，特定阵列的内存是否被分段或连续可以取决于任何数量的因素。

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