Relational Model Concepts
In this lesson, we will discuss the fundamentals of relational databases.
We'll cover the following...
Why use relational data models?
The relational data model was introduced by C.F. Codd in 1970. Currently, it is the most widely used data model.
The relational model has provided the basis for:
- Research on the theory of data/relationship/constraint.
- Numerous database design methodologies.
- The standard database access language called Structured Query Language (SQL).
- Almost all modern commercial database management systems.
The relational data model describes the world as “a collection of inter-related relations (or tables).”
What is relational model?
The ...