Скачать или смотреть Entity Relationship (ER) Model in DBMS | Introduction, Basic Concepts and Case Study | 2023

In this video, we'll learn about the Entity-relationship (ER) model in database management systems DBMS and understand its use case with an in-depth case study and many examples. ER model stands for an Entity-Relationship model and It is a high-level data model. This model defines the data elements and relationships for a specified system.

Terminologies like Entity, Attributes, Complex Attributes, Null values, Entity Type, Entity Set, Key Attribute & Value Set of Attributes, overall introduction, basic concepts, and case study will be discussed.

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We will cover every topic from ER Model / Entity Relationship Model. What is ER Model? What is Entity Relationship Mode? Why is ER Model Useful? This video explains what is Entity and Entity set?

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Timestamps:

00:00 Introduction
00:52 Introduction to ER Model/ What is ER Model?
03:26 Case Study Requirements
07:50 How to find Entities in the ER model
13:20 Attributes
17:47 Keys
20:10 Relationship
21:13 The cardinality of a Relationship
33:08 Complete ER Diagram
37:56 Recap

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