Relational Data Modeling
(การสร้างแบบจำลองข้อมูลเชิงสัมพันธ์)
Definition
Relational Data Modeling (การสร้างแบบจำลองข้อมูลเชิงสัมพันธ์) Hard Skill
Relational Data Modeling is the process of designing a structured framework that organizes data into tables with defined relationships, ensuring data integrity and supporting efficient data retrieval.
Expertise Level
Level 1
Basic
1. Understands basic concepts of tables, rows, and columns.
2. Can identify primary keys and simple relationships between tables.
3. Familiar with basic normalization concepts.
Level 2
Intermediate
1. Can design relational schemas with multiple related tables.
2. Applies normalization rules up to the third normal form.
3. Understands foreign keys and their role in data integrity.
4. Can model one-to-many and many-to-many relationships.
Level 3
Advanced
1. Designs complex relational data models optimized for performance and scalability.
2. Incorporates advanced concepts like indexing, constraints, and triggers.
3. Can translate real-world scenarios into efficient relational schemas.
4. Understands and applies denormalization when appropriate for query optimization.
