Page 13 - الحاسب الآلي ثانية إرشاد 2

‫أﻧﻈﻤﺔ ﻗﻮاﻋﺪ اﻟﺒﻴﺎﻧﺎت‬ ‫اﻟﻔﺼﻞ اﻷول‬

. ‫ ﺸﻜل‬.

Product no. 1:1 Product

‫ﻋﻼﻗﺔ‬ ‫ﻋﻼﻗﺔ‬
One-to-Many (1:M)

.

‫ ﺸﻜل‬.

.

Student no. 1:M
Medical Exam
no. ‫ﻋﻼﻗﺔ‬

‫ﻋﻼﻗﺔ‬
Many-to-Many (M:N)

١٣