Object-Relational Mapping Patterns

Object-Relational Mapping (ORM) patterns address the impedance mismatch between object-oriented programming and relational databases. They provide a way to query and manipulate data from a database using an object-oriented paradigm.

Wikipedia

Data Mapper

behavioral ORM

The Data Mapper pattern addresses the impedance mismatch between an object-oriented domain model and a relational database. It acts as a mediator, transferring data between these two representations without exposing the database structure to the domain layer. This separation allows the domain model to evolve …

Read More
Single Table Inheritance

behavioral ORM DDD

Single Table Inheritance is a strategy for representing a class hierarchy in a relational database using only one table for all classes in the hierarchy. A “type” column (or discriminator) is added to the table to indicate the specific class of each record. This approach simplifies querying and joins compared to other …

Read More

Data Mapper

Single Table Inheritance