本ppt介绍了多层C/S型数据库应用，多层数据库应用的结构，典型的三层C/S结构，B/S型数据库应用，典型的B/S结构（三层），结合三层C/S的B/S结构（四层），使用多层分布式应用结构的优势，高可靠性的多层分布式结构等方面的内容-ppt of the multi-storey C / S database application, the multilayer structure of the database application, the typical three-tier C / S, B / S database application, a typical B / S (three), the combination of the three-tier C / S B / S structure (four), the use of multi-storey structure of the distributed application advantages, high reliability distributed multi-storey structure of the content