公开(公告)号：US09171051B2

公开(公告)日：2015-10-27

申请号：US13949969

申请日：2013-07-24

Applicant: Oracle International Corporation

Inventor： Parthasarathy Elangadu Raghunathan ,  Lik Wong

IPC: G06F17/30

CPC classification number: G06F17/30575

Abstract: Techniques are provided for data definition language (DDL) expression annotation. DDL expression text is captured. The DDL expression text corresponds to a DDL change in a source database. A component set is determined. The component set includes at least one component in the DDL expression text. An annotation set is generated. The annotation set includes at least one annotation for at least one component of the component set. Each annotation includes hierarchical data describing at least one hierarchical relationship in the component set. For example, an annotation may include a component ID, a component position, a component length, a component type, and a parent component ID. The annotation set and a change record comprising the DDL expression text are transmitted to a replication client.

Abstract translation: 为数据定义语言（DDL）表达式注释提供了技术。 捕获DDL表达式文本。 DDL表达式文本对应于源数据库中的DDL更改。 确定组件集。 组件集包含DDL表达式文本中的至少一个组件。 生成注释集。 注释集合包括至少一个组件集合的一个组件的注释。 每个注释包括描述组件集中的至少一个分层关系的分层数据。 例如，注释可以包括组件ID，组件位置，组件长度，组件类型和父组件ID。 注释集和包含DDL表达式文本的更改记录被发送到复制客户端。