必须注意确保对象到关系数据库映射的正确性，理想情况下，应该将代码设计成在需求变更时所需的更改最小。
Proper care must be taken to ensure that object-relational database mappings are correct, and ideally the code should be designed to minimize the changes necessary when requirements change.
结论所设计的空间数据库总体框架结构合理，技术路线正确，可行性强。
ConclusionThe results indicate that the designed total frame in a database construction could be reasonable, the technique route could be right, the possibility could be strong.
所构造出的E - R模式是否满足数据库的设计要求，如何评价所构造的概念模型的正确性与完整性，仍然是个需要深入研究的问题。
Whether the E-R schema constructed caters for database requirement and how correctness and completeness of the conceptual schema is evaluated remains a problem needed for further research.
通过与所有的设备联机调试，证明系统运行稳定，数据库记录正确，达到设计要求。
Having been debugged with combined with all the relational equipments, the system was proved running stability, and the records of database were all right. The requirements of design were achieved.
图书馆管理数据库设计。如果输入的用户名和密 码正确，则可以进入主窗口。
If you enter a user name and password are correct, you can enter the main window.
图书馆管理数据库设计。如果输入的用户名和密 码正确，则可以进入主窗口。
If you enter a user name and password are correct, you can enter the main window.
应用推荐