Relational Database Model — core concept?
Organizes data into related tables using keys.
Table — definition?
Collection of related data organized in rows and columns.
Tables and Keys — purpose?
Define data structure and relationships.
Primary Key — role?
Unique identifier for each record in a table.
Relationship Types — examples?
One-to-one, one-to-many, many-to-many.
Foreign Key — purpose?
Establishes relationship by referencing another table's primary key.
One-to-One — relationship?
Each record relates to only one record.
One-to-Many — relationship?
One record relates to many records.
Many-to-Many — implementation?
Via junction tables.
Normalization — goal?
Reduce redundancy and dependency in data.
Testez vos connaissances avec un QCM de 9 questions sur Mastering Relational Database Design.
1. What is the relational database model primarily characterized by?
2. What is the primary purpose of a primary key in a relational database table?
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