tietokantakerroksen
Tietokantakerros, also known as the database layer, is the portion of a software system that handles all interactions with a database. It provides a dedicated interface for storing, retrieving, updating, and deleting data while abstracting the underlying database technology from the rest of the application.
The primary responsibilities of the tietokantakerros include data persistence, transaction management, query optimization, and ensuring data
Typical implementations of the database layer use Object-Relational Mapping (ORM) frameworks, such as Hibernate in Java
Design patterns often used within the tietokantakerros include the Repository, Unit of Work, and Data Mapper.
Security is paramount; therefore, the database layer must enforce data validation, escape inputs to prevent SQL