2022年5月31日
Relational Database (Enhanced E-R & Model Design)
摘要： CHAPTER 3: THE ENHANCED E-R MODEL supertype/subtype relationships symbol : or specialization and generalization techniques Note: multivalued composite 阅读全文
posted @ 2022-05-31 08:26 PEAR2020 阅读(56) 评论(0) 推荐(0) 编辑