Cross platform transportable tablespaces
    11.
    发明申请
    Cross platform transportable tablespaces 有权
    跨平台可运输的表空间

    公开(公告)号:US20050253739A1

    公开(公告)日:2005-11-17

    申请号:US10966679

    申请日:2004-10-14

    IPC分类号: G06F12/00 G06F17/30

    CPC分类号: G06F17/30569

    摘要: Stored data, such as tablespaces, are transported between different systems having different platforms by converting the format of the stored data into a common format either before or after transmitting the stored data from the source database system to the target database system. The common format may be a format that is universal in that the common format is not machine dependent. The stored data may be kept in the common format at the target database system and never converted to another format. Optionally, the stored data may be converted from the common format to a format associated with the target database system, thereby facilitating backward compatibility. A tool may be provided for performing the conversion. In an embodiment each of the target and source database systems have a copy of the tool.

    摘要翻译: 通过将存储的数据从源数据库系统发送到目标数据库系统之前或之后将所存储的数据的格式转换成通用格式,将诸如表空间的存储的数据传送到具有不同平台的不同系统之间。 通用格式可以是通用的格式,因为通用格式不依赖于机器。 存储的数据可以在目标数据库系统中保持为通用格式,并且不会转换为另一种格式。 可选地,存储的数据可以从公共格式转换成与目标数据库系统相关联的格式,从而有助于向后兼容。 可以提供用于执行转换的工具。 在一个实施例中,目标和源数据库系统中的每一个具有工具的副本。

    Database operation-aware striping technique
    12.
    发明授权
    Database operation-aware striping technique 有权
    数据库操作感知分条技术

    公开(公告)号:US08296517B2

    公开(公告)日:2012-10-23

    申请号:US12859184

    申请日:2010-08-18

    IPC分类号: G06F12/00

    摘要: A method, device, and computer readable medium for striping rows of data across logical units of storage with an affinity for columns is provided. Alternately, a method, device, and computer readable medium for striping columns of data across logical units of storage with an affinity for rows is provided. When data of a logical slice is requested, a mapping may provide information for determining which logical unit is likely to store the logical slice. In one embodiment, data is retrieved from logical units that are predicted to store the logical slice. In another embodiment, data is retrieved from several logical units, and the data not mapped to the logical unit is removed from the retrieved data.

    摘要翻译: 提供了一种方法,设备和计算机可读介质,用于跨逻辑存储单元条带化数据行,并且具有对列的亲和性。 或者,提供了一种方法,设备和计算机可读介质,用于跨存储的逻辑单元条带化数据列,具有对行的亲和性。 当请求逻辑片的数据时,映射可以提供用于确定哪个逻辑单元可能存储逻辑片的信息。 在一个实施例中,从预测存储逻辑片的逻辑单元检索数据。 在另一个实施例中,从多个逻辑单元检索数据,并且从所检索的数据中去除未映射到逻辑单元的数据。