Synchronization of change-tracked data store with data store having limited or no change tracking
    1.
    发明授权
    Synchronization of change-tracked data store with data store having limited or no change tracking 有权
    改变跟踪的数据存储与数据存储的同步有限或没有变化跟踪

    公开(公告)号:US07539827B2

    公开(公告)日:2009-05-26

    申请号:US11488971

    申请日:2006-07-19

    IPC分类号: G06F12/00 G06F17/30

    摘要: A data store in which changes are not tracked is synchronized with a data store in which changes are tracked utilizing a shadow store. The shadow store contains shadow data indicative of the most recent synchronization operation between the data stores. The shadow data comprises hash values of the data items in the limited or non-change-tracked data store. Changes to data items in the limited or non-change-tracked data store are operated on to provide respective hash values. The hash values are compared with the hash values in the shadow data. If the hash values differ, changes are appropriately applied to the data store, and the shadow data is appropriately updated. In an example embodiment, hash values are obtained from one-way hash functions, such MD5, SHA-1, SHA-256, or the like.

    摘要翻译: 不跟踪更改的数据存储与数据存储进行同步,在数据存储中使用影子存储跟踪更改。 影子存储包含指示数据存储之间最近的同步操作的阴影数据。 阴影数据包括有限或非变化跟踪的数据存储中的数据项的散列值。 操作有限或非变化跟踪的数据存储中的数据项的变化以提供相应的散列值。 哈希值与阴影数据中的哈希值进行比较。 如果哈希值不同,则更改适当地应用于数据存储,并且阴影数据被适当地更新。 在示例实施例中,从单向散列函数(例如MD5,SHA-1,SHA-256等)获得哈希值。

    Synchronization of change-tracked data store with data store having limited or no change tracking
    2.
    发明申请
    Synchronization of change-tracked data store with data store having limited or no change tracking 有权
    改变跟踪的数据存储与数据存储的同步有限或没有变化跟踪

    公开(公告)号:US20080022057A1

    公开(公告)日:2008-01-24

    申请号:US11488971

    申请日:2006-07-19

    IPC分类号: G06F12/16

    摘要: A data store in which changes are not tracked is synchronized with a data store in which changes are tracked utilizing a shadow store. The shadow store contains shadow data indicative of the most recent synchronization operation between the data stores. The shadow data comprises hash values of the data items in the limited or non-change-tracked data store. Changes to data items in the limited or non-change-tracked data store are operated on to provide respective hash values. The hash values are compared with the hash values in the shadow data. If the hash values differ, changes are appropriately applied to the data store, and the shadow data is appropriately updated. In an example embodiment, hash values are obtained from one-way hash functions, such MD5, SHA-1, SHA-256, or the like.

    摘要翻译: 不跟踪更改的数据存储与数据存储进行同步,在数据存储中使用影子存储跟踪更改。 影子存储包含指示数据存储之间最近的同步操作的阴影数据。 阴影数据包括有限或非变化跟踪的数据存储中的数据项的散列值。 操作有限或非变化跟踪的数据存储中的数据项的变化以提供相应的散列值。 哈希值与阴影数据中的哈希值进行比较。 如果哈希值不同,则更改适当地应用于数据存储,并且阴影数据被适当地更新。 在示例实施例中,从单向散列函数(例如MD5,SHA-1,SHA-256等)获得哈希值。