最后，通过实际工程应用，对整个展示系统的各种调用逻辑关系进行修复，并最终完成整个软件流程的设计。
Finally, the practical application of the entire display system restore the logical relations, and eventually complete the whole process of software design.
确定这些逻辑关系是数据管理者的任务，由数据定义语言完成。
Identifying these logical relationships is a job of the data administrator. A data definition language is used for this purpose.
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