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    • 1. 发明授权
    • Systems and methods for managing foreign key constraints
    • 用于管理外键约束的系统和方法
    • US08010521B2
    • 2011-08-30
    • US12382739
    • 2009-03-23
    • Jürgen G. KissnerAndreas Fischbach
    • Jürgen G. KissnerAndreas Fischbach
    • G06F17/30
    • G06F17/3051
    • Systems and methods consistent with the invention may include generating, via a processor, an entity relationship model to indicate a plurality of types of relationships between the entities, determining relationships between the database tables corresponding to the entities by using the entity relationship model, wherein the database tables are stored in a computer memory device, generating a graph based on the entity relationship model, generating sets of database elements representing the entities and corresponding data objects stored in the database tables, wherein the element sets are generated based on the generated graph, assigning ordering numbers to the database element sets and database elements included in the database element sets and executing the query transaction by using the data objects in an order based on the ordering numbers.
    • 与本发明一致的系统和方法可以包括经由处理器生成实体关系模型以指示实体之间的多种类型的关系,通过使用实体关系模型确定与实体相对应的数据库表之间的关系,其中, 数据库表存储在计算机存储器设备中,基于实体关系模型生成图形,生成表示实体的数据库元素集合和存储在数据库表中的对应数据对象,其中基于生成的图形生成元素集合, 向数据库元素集和数据库元素中包含的数据库元素分配排序号通过使用基于订购号的顺序的数据对象来设置和执行查询事务。