无第三方软件支持的数据库应用程序开发

Development of database application without support of third party software

为了让用户在使用化工设备强度设计软件时选用新的材料,且根据行业变化随时更新设计材料,开发了"用户材料数据库管理模块",首先建立材料数据结构体,以结构体作为链表的结点,然后利用微软基础类库的链表功能完成数据的添加和删除功能,最后利用CStudioFile类实现数据文件的读和写.模块运行结果表明在数据量不太大的情况下,该方法与需要借助第三方软件的数据库开发方法相比,没有数据源,也不涉及数据库常用访问技术,因此易于实现,得到的模块也具有较好的移植性.

To make the users select the new materials in the use of chemical equipment strength design software,and update the material database according to the change of their major materials,a user＇s material database management system was developed.Firstly,the material data structures were built,secondly a linked list was setup whose nodes are structural;then the list functions of Microsoft Foundation Classes were used to add or delete data nodes;finally the CStudioFile class was used to read and write file.Module operation results show that the developed method which has no data source and does not involve the common database access technology compared with the database development method using the third party software is easy to implement in the cases of the amount of data not too large.The developed module has good portability.