摘要
介绍了在作者开发的嵌入式全关系系统CR Foxpro(CompleteRelation Foxpro)中关系代数非基本运算操作命令的实现,特别是使用作者提出的关系除法运算的基本运算表达公式实现了除法操作命令。
This paper discusses the method of achieving additional operations in the embedding complete relational system CR-Foxpro developed by author. Especially it uses the additional expression of relational division proposed by author in achieving the command of divisional operations.
出处
《陕西科技大学学报（自然科学版）》
2004年第2期90-93,共4页
Journal of Shaanxi University of Science & Technology
