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    MULTI-VERSION CONCURRENCY CONTROL ON IN-MEMORY SNAPSHOT STORE OF ORACLE IN-MEMORY DATABASE
    2.
    发明申请
    MULTI-VERSION CONCURRENCY CONTROL ON IN-MEMORY SNAPSHOT STORE OF ORACLE IN-MEMORY DATABASE 审中-公开
    存储器内存数据库的内存存储器的多版本同步控制

    公开(公告)号：WO2015041968A1

    公开(公告)日：2015-03-26

    申请号：PCT/US2014/055571

    申请日：2014-09-15

    Applicant: ORACLE INTERNATIONAL CORPORATION

    Inventor： RAJA, Vivekanandhan ,  HASE, Sanket ,  GANESH, Amit ,  MARWAH, Vineet ,  SU, Shuang ,  MULLICK, Atrayee ,  PENDSE, Sukhada

    IPC: G06F17/30

    CPC classification number: G06F17/30371 ,  G06F17/30324 ,  G06F17/30356 ,  G06F17/30507 ,  G06F17/30578 ,  G06F17/30581

    Abstract: Techniques are provided for maintaining data persistently in one format, but making that data available to a database server in more than one format. For example, one of the formats in which the data is made available for query processing is based on the on-disk format, while another of the formats in which the data is made available for query processing is independent of the on-disk format. Data that is in the format that is independent of the disk format may be maintained exclusively in volatile memory to reduce the overhead associated with keeping the data in sync with the on-disk format copies of the data.

    Abstract translation: 提供的技术用于以一种格式持续保持数据，但使数据库可以以多种格式提供给数据库服务器。 例如，数据可用于查询处理的格式之一是基于磁盘格式，而数据可用于查询处理的另一种格式与磁盘格式无关。 独立于磁盘格式的格式的数据可以专门保存在易失性存储器中，以减少与保持数据与数据的磁盘格式副本同步的开销。

    VERSIONING AND NON-DISRUPTIVE SERVICING OF IN-MEMORY UNITS IN A DATABASE
    3.
    发明申请
    VERSIONING AND NON-DISRUPTIVE SERVICING OF IN-MEMORY UNITS IN A DATABASE 审中-公开
    数据库中存储单元的版本化和非破坏性维护

    公开(公告)号：WO2017210157A1

    公开(公告)日：2017-12-07

    申请号：PCT/US2017/034939

    申请日：2017-05-30

    Applicant: ORACLE INTERNATIONAL CORPORATION

    Inventor： MULLICK, Atrayee ,  MUKHERJEE, Niloy ,  HASE, Sanket ,  LAHIRI, Tirthankar ,  LOAIZA, Juan

    IPC: G06F17/30

    Abstract: Techniques for non-disruptive versioning of in-memory units in a database are provided. A database server generates and maintains a first IMU that reflects changes made to a mirrored-data-set up to a first snapshot time, and a second IMU that reflects changes made to the mirrored-data-set up to a second snapshot time. During a first period, the database server responds to updates to first data items in the mirrored data by storing first staleness metadata that indicates that the copies of the first data items in the first IMU are stale. During a second period, the database server responds to updates to second data items in the mirrored data by storing second staleness metadata that indicates the copies of the second data items in the second IMU are stale. The database server responds to a request by accessing the first IMU or the second IMU.

    Abstract translation:

    提供了数据库中内存单元的无中断版本控制技术。 数据库服务器生成并维护第一IMU和第二IMU，该第一IMU反映对到第一快照时间的镜像数据集所做的更改，第二IMU反映对镜像数据集所做的更改直到第二快照时间。 在第一时段期间，数据库服务器通过存储指示第一IMU中的第一数据项的副本过时的第一过时元数据来响应对镜像数据中的第一数据项的更新。 在第二时段期间，数据库服务器通过存储指示第二IMU中的第二数据项的副本过时的第二过时元数据来响应对镜像数据中的第二数据项的更新。 数据库服务器通过访问第一个IMU或第二个IMU来响应请求。

    MULTI-VERSION CONCURRENCY CONTROL ON IN-MEMORY SNAPSHOT STORE OF ORACLE IN-MEMORY DATABASE
    8.
    发明公开
    MULTI-VERSION CONCURRENCY CONTROL ON IN-MEMORY SNAPSHOT STORE OF ORACLE IN-MEMORY DATABASE 审中-公开
    上的存储器内部存储器快照的一个内部的存储器ORACLE数据库几个版本并行控制

    公开(公告)号：EP3047400A1

    公开(公告)日：2016-07-27

    申请号：EP14786387.2

    申请日：2014-09-15

    Applicant: Oracle International Corporation

    Inventor： RAJA, Vivekanandhan ,  HASE, Sanket ,  GANESH, Amit ,  MARWAH, Vineet ,  SU, Shuang ,  MULLICK, Atrayee ,  PENDSE, Sukhada

    IPC: G06F17/30

    CPC classification number: G06F17/30371 ,  G06F17/30324 ,  G06F17/30356 ,  G06F17/30507 ,  G06F17/30578 ,  G06F17/30581

    Abstract: Techniques are provided for maintaining data persistently in one format, but making that data available to a database server in more than one format. For example, one of the formats in which the data is made available for query processing is based on the on-disk format, while another of the formats in which the data is made available for query processing is independent of the on-disk format. Data that is in the format that is independent of the disk format may be maintained exclusively in volatile memory to reduce the overhead associated with keeping the data in sync with the on-disk format copies of the data.

    Abstract translation: 提供了持续一个格式维护数据，但是却在多种格式制作提供给数据库服务器的数据的技术。 对于实施例，在其中的数据是由可用于查询处理的格式之一是基于所述磁盘上的格式，而另一种的，其中数据是由可用于查询处理的格式是独立于所述磁盘上的格式的。 数据确实是在格式所做的是独立的磁盘格式的可以在易失性存储器保持独占以减少与数据的磁盘上的格式拷贝保持数据同步相关联的开销。

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