针对石油勘探开发数据模型改造与升级、行业专业数据库的异构性、数据共享困难等问题,提出利用异构数据库的数据字典,构建数据映射关系描述数据库差异的数据迁移思想.对各种异构模型形成统一的映射分析方法和统一的描述形式,解决了数据模型之间的异构描述及异构转换通用性问题.通过解析数据映射、编译数据文件,实现大型异构数据库的数据迁移和数据回显功能.此系统已经在油田上线运行,取得良好的数据迁移效果,实现了勘探开发数据的统一管理和维护.%For the transformation and upgrading of the data model for oil exploration and development, different structures of specialized databases, data sharing difficulties and other issues, the idea of data migration that builds data mapping to describe the differences between heterogeneous databases on account of database dictionaries is proposed. It forms a unified mapping analysis method and description for different structures to solve the problem of heterogeneous data models description and generic conversion. By parsing data mappings and compiling data files, the data migration and back-to-original conversion among large heterogeneous databases are realized. This system has been operating on the fields. It has done well at data migration, and achieved unified management and maintenance with exploration and development data.
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