公开(公告)号：US10380085B2

公开(公告)日：2019-08-13

申请号：US15286551

申请日：2016-10-05

申请人： International Business Machines Corporation

发明人： Daniel L. Cheung ,  Sanjay Nagchowdhury ,  John A. Owen

IPC分类号： G06F16/21 ,  G06F16/28

摘要： There is disclosed a system for migrating records in a database from a source database schema to a target database schema. A request is received to delete a state from the source schema. The state is marked as the redundant state. A resultant state is identified to which to migrate database records in the redundant state and a valid migration path is calculated between the redundant state and the resultant state.

公开(公告)号：US20170024383A1

公开(公告)日：2017-01-26

申请号：US15286551

申请日：2016-10-05

申请人： International Business Machines Corporation

发明人： Daniel L. Cheung ,  Sanjay Nagchowdhury ,  John A. Owen

IPC分类号： G06F17/30

CPC分类号： G06F16/214 ,  G06F16/212 ,  G06F16/288

摘要： There is disclosed a system for migrating records in a database from a source database schema to a target database schema. A request is received to delete a state from the source schema. The state is marked as the redundant state. A resultant state is identified to which to migrate database records in the redundant state and a valid migration path is calculated between the redundant state and the resultant state.

摘要翻译： 公开了一种用于将数据库中的记录从源数据库模式迁移到目标数据库模式的系统。 接收到从源模式中删除状态的请求。 状态被标记为冗余状态。 识别出以冗余状态迁移数据库记录的结果状态，并且在冗余状态和结果状态之间计算有效的迁移路径。