Effective database design is crucial for creating scalable and maintainable applications. In this post, we’ll cover the basics of database design and best practices.
Normalization
Normalization is the process of organizing data to reduce redundancy and improve data integrity. Here are the first three normal forms:
- First Normal Form (1NF): Ensure each column contains only atomic values.
- Second Normal Form (2NF): Ensure all non-key columns are fully dependent on the primary key.
- Third Normal Form (3NF): Ensure all non-key columns are not dependent on other non-key columns.
Entity-Relationship Diagrams (ERD)
ERDs are a visual representation of the entities and their relationships in a database. Here’s a simple example:
Customer (CustomerID, Name, Email)
Order (OrderID, OrderDate, CustomerID)
Stay tuned for more detailed tutorials on database design!
John & Kevin
Cyber Craftsmen Team
