Checkpoint-free in log mining for distributed information sharing
    51.
    发明授权
    Checkpoint-free in log mining for distributed information sharing 有权
    日志挖掘中使用无检查点进行分布式信息共享

    公开(公告)号:US09009104B2

    公开(公告)日:2015-04-14

    申请号:US12853991

    申请日:2010-08-10

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30368

    摘要: Techniques for replicating data between database systems without taking checkpoints are provided. In an embodiment, a capture process restarts. Upon restarting, the capture process reestablishes an association with an apply process. A particular logical time maintained by the apply process is then communicated to the capture process. Upon receiving the particular logical time, the capture process restarts mining from this particular logical time.

    摘要翻译: 提供了在不使用检查点的情况下在数据库系统之间复制数据的技术。 在一个实施例中,捕获过程重新启动。 重新启动后,捕获进程重新建立与应用进程的关联。 然后将应用过程维护的特定逻辑时间传达给捕获进程。 在接收到特定的逻辑时间之后,捕获过程从该特定逻辑时间重新启动挖掘。

    Checkpoint-Free In Log Mining For Distributed Information Sharing
    52.
    发明申请
    Checkpoint-Free In Log Mining For Distributed Information Sharing 有权
    用于分布式信息共享的日志挖掘中的Checkpoint-Free

    公开(公告)号:US20110010392A1

    公开(公告)日:2011-01-13

    申请号:US12853991

    申请日:2010-08-10

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30368

    摘要: Techniques for replicating data between database systems without taking checkpoints are provided. In an embodiment, a capture process restarts. Upon restarting, the capture process reestablishes an association with an apply process. A particular logical time maintained by the apply process is then communicated to the capture process. Upon receiving the particular logical time, the capture process restarts mining from this particular logical time.

    摘要翻译: 提供了在不使用检查点的情况下在数据库系统之间复制数据的技术。 在一个实施例中,捕获过程重新启动。 重新启动后,捕获进程重新建立与应用进程的关联。 然后将应用过程维护的特定逻辑时间传达给捕获进程。 在接收到特定的逻辑时间之后,捕获过程从该特定逻辑时间重新启动挖掘。

    Techniques for replicating groups of database objects
    53.
    发明授权
    Techniques for replicating groups of database objects 有权
    复制数据库对象组的技术

    公开(公告)号:US07801861B2

    公开(公告)日:2010-09-21

    申请号:US11366300

    申请日:2006-03-01

    IPC分类号: G06F7/00 G06F17/00 G06F15/16

    摘要: Techniques for making a replica of a particular group of database objects of a database on a particular node that does not initially have the particular group of database objects include determining whether conditions for copying a full database from a first node are satisfied. If conditions for copying the full database from the first node are not satisfied, then a database-object-copy routine is employed for each database object in the particular group of database objects. If conditions for copying the full database from the first node are satisfied, then a full-database-copy routine for performing a copy of an entire database is employed.

    摘要翻译: 用于制作特定节点上数据库的特定数据库对象的副本的技术,该数据库对象最初不具有特定的数据库对象组,包括确定是否满足从第一个节点复制完整数据库的条件。 如果不满足从第一个节点复制完整数据库的条件,则对数据库对象的特定组中的每个数据库对象采用数据库对象复制例程。 如果满足从第一个节点复制完整数据库的条件,则采用用于执行整个数据库副本的全数据库复制例程。

    On-demand multi-version data dictionary to support distributed applications
    54.
    发明授权
    On-demand multi-version data dictionary to support distributed applications 有权
    按需多版本数据字典支持分布式应用

    公开(公告)号:US07287034B2

    公开(公告)日:2007-10-23

    申请号:US10431604

    申请日:2003-05-08

    IPC分类号: G06F17/30

    摘要: A method, system, and computer program product for transmitting a redo stream from a database to one or more distributed database systems, upon which applications that process the redo stream are implemented, and which maintains the data dictionaries by replicating the multiple versions of the schema objects to data dictionaries in the distributed database systems. A method of maintaining a multi-version data dictionary includes generating a logical redo stream, inserting procedure calls to be used to populate the multi-version data dictionary into the generated logical redo stream, transmitting the logical redo stream to the multi-version data dictionary, and executing the procedure calls at the multi-version data dictionary to populate the multi-version data dictionary.

    摘要翻译: 一种用于将重做流从数据库发送到一个或多个分布式数据库系统的方法,系统和计算机程序产品,在其上实现处理重做流的应用程序,并且通过复制模式的多个版本来维护数据字典 对象到分布式数据库系统中的数据字典。 维护多版本数据字典的方法包括生成逻辑重做流,插入用于将多版本数据字典填充到所生成的逻辑重做流中的过程调用,将逻辑重做流传输到多版本数据字典 ,并在多版本数据字典中执行过程调用以填充多版本数据字典。

    Techniques for adding a master in a distributed database without suspending database operations at extant master sites
    55.
    发明授权
    Techniques for adding a master in a distributed database without suspending database operations at extant master sites 有权
    在分布式数据库中添加主机的技术,而不会在现有主站点上挂起数据库操作

    公开(公告)号:US07039669B1

    公开(公告)日:2006-05-02

    申请号:US09967856

    申请日:2001-09-28

    IPC分类号: G06F17/30

    摘要: Techniques for making a replica of a particular group of database objects of a database on a particular node that does not initially have the particular group of database objects include transferring description data from a first node to the particular node during a first time period. The description data describes the particular group of database objects at a first time. The first time period begins at the first time and ends at a second time. During the first time period, a request from a user of the database to perform an operation involving particular data in the particular group of database objects is processed.

    摘要翻译: 用于制作特定节点上数据库的特定数据库对象的副本的技术,该特定数据库对象最初不具有特定的数据库对象组包括在第一时间段内将描述数据从第一节点传送到特定节点。 描述数据在第一时间描述数据库对象的特定组。 第一个时间段从第一个时间开始,第二个时间结束。 在第一时间段期间,处理来自数据库的用户的请求以执行涉及数据库对象的特定组中的特定数据的操作。