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    • 2. 发明申请
    • Method and system for synchronization of copies of a database
    • 用于数据库副本同步的方法和系统
    • US20050149582A1
    • 2005-07-07
    • US10748127
    • 2003-12-29
    • Joseph WissmannMichael Cross
    • Joseph WissmannMichael Cross
    • G06F17/30
    • G06F16/275G06F16/273
    • Disclosed is a lightweight database migration framework that allows schema definitions and incremental migrations to be pushed out to target local computers. The framework facilitates complex migrations by using either SQL script or programmatic migration methods to target local computers. Developers can download migration scripts from messages that are pushed to them, by electronic mail or otherwise, to synchronize their local database without the need to visit a central server. A base schema may be maintained via a set of incremental migration scripts, which generally correspond to milestone releases. In some embodiments, the scripts are specified via an XML document. The framework deduces a target database's schema version and automatically applies the necessary migration path to reach a target schema version. There is no need to visit a central server. Thus, there is no need to manage and maintain centralized server. Also, the migration scripts can be SQL scripts or code that executes complex data manipulation. The system encodes version histories by storing the migration scripts in a history folder, and facilitates the creation and migration to an earlier arbitrary schema version by reversing the operations performed using migration scripts executed after the arbitrary schema was created.
    • 公开了一种轻量级数据库迁移框架,允许将模式定义和增量迁移推送到目标本地计算机。 该框架通过使用SQL脚本或编程迁移方法来定位本地计算机来促进复杂迁移。 开发人员可以通过电子邮件或其他方式将消息推送到他们的本地数据库,而不需要访问中央服务器来下载迁移脚本。 可以通过一组增量迁移脚本维护基本架构,这些脚本通常对应于里程碑版本。 在一些实施例中,脚本通过XML文档来指定。 该框架推导出目标数据库的模式版本,并自动应用必要的迁移路径来达到目标​​模式版本。 没有必要访问中央服务器。 因此,不需要管理和维护集中式服务器。 此外,迁移脚本可以是执行复杂数据操作的SQL脚本或代码。 系统通过将迁移脚本存储在历史文件夹中来对版本历史进行编码,并通过反转使用在任意模式创建后执行的迁移脚本执行的操作,便于创建和迁移到较早的任意模式版本。
    • 4. 发明申请
    • Framework for shared physical models in a multi-database installation
    • 多数据库安装中共享物理模型的框架
    • US20050138059A1
    • 2005-06-23
    • US10740700
    • 2003-12-19
    • Michael CrossJoseph Wissmann
    • Michael CrossJoseph Wissmann
    • G06F7/00G06F9/46
    • G06F17/30477Y10S707/99943
    • The present invention is a method, system and apparatus for generating parameterized installation scripts to accommodate the installation of multiple databases sharing similar physical constructs. The method of the invention can include the step of creating a database which can achieve the foregoing stated advantages of the present invention, a parameterized description of a physical data model can be first combined with a set of database specific properties to produce a physical database. A parameterized description of a logical data model can be second combined with the set of database specific properties to generate a logical model for the physical database. The first combining step can include the step of creating at least one bufferpool in the physical database as specified by the properties. Also, the first combining step can include the step of creating at least one tablespace in the physical database as specified by the properties.
    • 本发明是一种用于生成参数化安装脚本以适应多个共享类似物理结构的多个数据库的安装的方法,系统和装置。 本发明的方法可以包括创建可以实现本发明的上述优点的数据库的步骤,物理数据模型的参数化描述可以首先与一组数据库特定属性组合以产生物理数据库。 可以将逻辑数据模型的参数化描述与数据库特定属性的集合进行二次组合,以生成物理数据库的逻辑模型。 第一组合步骤可以包括在由属性指定的物理数据库中创建至少一个缓冲池的步骤。 此外,第一组合步骤可以包括在由属性指定的物理数据库中创建至少一个表空间的步骤。