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Primary key Introduction Introduction: A primary key, also called a primary keyword, is a key in a relational database that is unique for each record. - ppt download
RDB Design Elements
An example of two related tables in a relational database | Download Scientific Diagram
Analyzing a Table Definition
What is a Relational Database Management System? | Codecademy
What is relational?. Hi all guys! Hope you are well and… | by Luigi Fiori | Medium
5.6 Databases
Solved 2. One important constraint in a relational database | Chegg.com
Types of Relationship in Database Table - javatpoint