数据逻辑层 meaning in Chinese

datalogical level

Using the oracle9i as as the j2ee application server and ejb as the developing technology , this paper designs the data logic layer and business logic layer in the digital university , which is the application layer component in the digital university
以oracle9ias作为数字化校园的j2ee应用服务器，以ejb组件技术为开发工具，设计了数字化校园中的数据逻辑层和业务逻辑层，这是数字化校园中的应用层部分。