In a distributed database management system (DDBMS), the Code Generation Model is important to implement the distribution transparency of both the fragmentation and allocatoin of the system. The efficiency of the system is dependent on it.

• 分布式数据库管理系统(DDBMS)中,代码生成模块是实现系统的分布透明性(分割透明性和分配透明性)的重要模块,其设计得好坏对整个系统有极大的影响。