Here is a summary of the blog post: Implementing a custom event-driven system in CodeIgniter can help create a robust and scalable application architecture by enabling seamless communication between different components. By using hooks and libraries, you can extend the core functionality of CodeIgniter and create reusable components to improve performance, flexibility, and maintainability.

Relational database structure is the foundation of SQLite, and understanding it is key to effective database management. A relational database consists of tables, columns, rows, primary keys, and foreign keys that establish relationships between tables, including one-to-one, one-to-many, and many-to-many relationships. Mastering this structure and using SQL commands to create and manage tables is crucial for database mastery.

Mastering CodeIgniter: Key Takeaways for Database Integration and Schema Management. By understanding database migrations and schema changes, you can avoid data loss and inconsistencies while upgrading your CodeIgniter application to the latest schema. Key takeaways include using the built-in Migration Library, creating and applying database-dependent code snippets, and utilizing commands like `php spark migration:run` to maintain a stable database.