This short course equips participants with practical knowledge and skills in designing, developing, implementing, and managing relational database systems. Participants will learn essential concepts and techniques, including database modelling, Entity Relationship Diagrams (ERDs), database normalization, table creation, data manipulation, and data retrieval using Structured Query Language (SQL). The course also covers database security, user management, backup, and restoration. Through hands-on exercises and practical projects using MySQL/Oracle, participants will gain the ability to design and develop efficient, secure, and reliable database systems for various organizational and business applications.