目录与关系数据库的分层映射数据集成模型

Data integration model of hierarchical mapping with directory and RDB

针对LDAP目录服务和关系数据库在分布性、查询效率、事务处理和数据变更等方面各有优势的特点,建立了一个LDAP目录服务与关系数据库的分层映射数据集成模型。构建了LDAP与关系数据库在数据类型、数据结构和操作语句的三层映射关系,并设计了一种属性映射的数据集成方法。该方法提取用户请求中属性和过滤器两个参数直接将LDAP请求映射为SQL操作,实现数据集成。将该模型应用于分布式综合评价模型库目录管理系统中,结果表明了该模型的可行性与有效性。

Taking into account LDAP directory services and relational databases have their own advantages in the distribution, the query efficiency, transaction processing and data changes, etc. A data integrate model of hierarchical mapping with LDAP directory services and RDB is constructed. The three-tier mapping in data types, data structures and operating statements with LDAP and relational database are built. The method of attribute mapping is designed. This method extracts the attributes and filter from user request to make the LDAP request directly mapped to SQL operations. Data integration is achieved, This model is applied to distributed comprehensive evaluation model-base directory management system, the feasibility and the effectiveness of the model are demonstrated.