MULTI-VERSION CONCURRENCY CONTROL ON IN-MEMORY SNAPSHOT STORE OF ORACLE IN-MEMORY DATABASE
    2.
    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

    IPC分类号: G06F17/30

    摘要: 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.

    摘要翻译: 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。