【摘要】 为给数据网格中分布、异构的数据源提供一个统一的访问服务,提出一种基于开源项目Tuscany Das的编程模型,为客户端提供的主要功能包括数据库的CRUD操作(增加、查询、更新和删除)、调用数据库的存储过程操作和记录集的分页。通过中国地震减灾网格试验床数据网格平台GIS应用验证了该模型的有效性。更多还原

【Abstract】 A critical problem in data grid is how to give general access service for distributed and heteromerous data source.In this paper a programming model for data access is addressed based on open source project Tuscany Das,and functions in the model are provided for clients.Those functions include CRUD operations,calling stored procedure and recordset paging.A GIS application on data grid platform for China earthquake disaster alleviation grid testbed is completed using this model and its functions.更多还原