DBMS_Entity-Relationship Data Model
Ch2-Sec6-EER1.ppt
er model
2. Entity-Relationship Model
©Silberschatz, Korth and Sudarshan2.1Database System Concepts Weak Entity Sets An entity set that does not have a primary key is referred to as a weak.
Chapter 2: Entity-Relationship Model
Session 2
Aandachtspunten
