Appendix A. Service for UNIX 3.0 and 3.5 schema mappings.
附录A . Service for UNIX 3.0和3.5模式映射。
Three complementary improvement methods to respond to system dynamicity are presented here by managing schema mappings.
这里提出通过模式映射管理应对系统动态性的三种互补的改进方法。
On the mapping path composed of connecting schema mappings, queries are reformulated and forwarded for multiple times to achieve data sharing among multiple data sources.
查询在连接的模式映射组成的映射路径上，通过多次重写转发实现多数据源的数据共享。
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