Systems and methods for in-place migration with downtime minimization

    公开(公告)号:US09881035B2

    公开(公告)日:2018-01-30

    申请号:US14568959

    申请日:2014-12-12

    Applicant: SAP SE

    CPC classification number: G06F17/303 G06F17/30595

    Abstract: A system and method for database migration is provided. In an example embodiment, the database migration technique may include a first connection to a relational database, a second connection to an in-memory database, and a migration framework to analyze the data structures of the relational database so as to identify first and second subsets of data structures. The first subset of data structures is migrated to the in-memory database during an uptime period of the relational database, and the second subset of data structures is migrated to the in-memory database during a downtime period of the relational database.

    TABLE MIGRATION TO UPDATED STRUCTURES WITHOUT CREATING AN INTERMEDIATE COPY OF THE TABLE DATA

    公开(公告)号:US20170139960A1

    公开(公告)日:2017-05-18

    申请号:US14945192

    申请日:2015-11-18

    Applicant: SAP SE

    CPC classification number: G06F16/2228 G06F16/21 G06F16/214 G06F16/2282

    Abstract: A database definition language (DDL) description of a database table can be copied to create a temporary copy of the database table as part of a table upgrade to change a structure of the database table to an upgraded structure. The temporary copy of the database table can be renamed, and the DDL description in the temporary copy of the database table can be changed to an intermediate state while a runtime object and a database object of the database table remain in original states. The changed DDL description can be activated in the temporary copy of the database table such that the runtime object and the database object are updated to the intermediate state, and the temporary copy of the database table can be renamed to an original name of the database table, thereby activating the temporary copy as the database table with the upgraded structure.

    SYSTEMS AND METHODS FOR IN-PLACE MIGRATION WITH DOWNTIME MINIMIZATION
    7.
    发明申请
    SYSTEMS AND METHODS FOR IN-PLACE MIGRATION WITH DOWNTIME MINIMIZATION 有权
    用于在停机最小化下进行移动的系统和方法

    公开(公告)号:US20160170977A1

    公开(公告)日:2016-06-16

    申请号:US14568959

    申请日:2014-12-12

    Applicant: SAP SE

    CPC classification number: G06F17/303 G06F17/30595

    Abstract: A system and method for database migration is provided. In an example embodiment, the database migration technique may include a first connection to a relational database, a second connection to an in-memory database, and a migration framework to analyze the data structures of the relational database so as to identify first and second subsets of data structures. The first subset of data structures is migrated to the in-memory database during an uptime period of the relational database, and the second subset of data structures is migrated to the in-memory database during a downtime period of the relational database.

    Abstract translation: 提供了一种用于数据库迁移的系统和方法。 在示例实施例中,数据库迁移技术可以包括到关系数据库的第一连接,到内存数据库的第二连接,以及用于分析关系数据库的数据结构以便识别第一和第二子集的迁移框架 的数据结构。 数据结构的第一个子集在关系数据库的正常运行期间迁移到内存数据库,并且数据结构的第二个子集在关系数据库的停机期间迁移到内存数据库。

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