DBMS: Entity-Relationship (ER) Model
Topics discussed:
1. Terminologies in relation to the ER Model:
a. Entity.
b. Attributes:
• Composite vs Simple Attributes
• Single-valued vs Multivalued Attributes
• Derived vs Stored Attributes
c. Complex Attributes.
d. Null values.
e. Entity Type, Entity Set.
f. Key Attribute & Value Set of Attributes.
Follow Neso Academy on Instagram: @nesoacademy(bit.ly/2XP63OE)
Contribute: www.nesoacademy.org/donate
Memberships: bit.ly/2U7YSPI
Books: www.nesoacademy.org/recommende...
Website ► www.nesoacademy.org/
Forum ► forum.nesoacademy.org/
Facebook ► goo.gl/Nt0PmB
Twitter ► / nesoacademy
Music:
Axol x Alex Skrindo - You [NCS Release]
#DBMSByNeso #DBMS #ERModel #EntityRelationshipModel
Негізгі бет Basic Concepts of Entity-Relationship Model
Пікірлер: 111