SQL Database Creation Practical Examples (Musicana, Hospital, Real Estate Firm, Airlines Company)

This section of the SQL Database Creation focuses on the practical implementation of relational databases. It includes the design and population of four distinct databases: Musicana (likely managing musicians, instruments, and related entities with tables such as Musician, Instrument, and Musician_Instrument); Hospital (for healthcare management, covering patients, doctors, departments, etc.); Real Estate Firm (handling properties, agents, clients, and transactions); and Airlines Company (tracking flights, passengers, aircraft, and bookings). For each database, an Entity-Relationship (ER) diagram is provided to visualize tables, primary keys, foreign keys, constraints, and relationships, followed by SQL INSERT statements to populate the tables with sample data, demonstrating database creation, schema design, and data insertion in a real-world context.