Most of the data is stored in the database, but some files - such as media files that users upload - are stored in the local file system. The software's architecture is as follows.
大部分数据被存储在数据库中，但是一些文件，比如用户上传的媒体文件，被存储在当地文件系统中。
This paper introduces a new architecture for database encryption system and the way to implement it, gives its main module. Some security problems and performance of this system are discussed.
提出了一种数据库加密系统实现结构和方法，给出了主要的功能模块，对相关的安全问题和性能进行了讨论。
This paper discusses the necessity of applying Database System to Bridge CAD. The constitution and system architecture of bridge CAD based on core database system has been studied.
指出了在桥梁CAD中采用数据库技术的必要性，叙述了以核心数据库系统为支撑的桥梁CAD系统的组成和体系结构。
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