ORM

✅ ORM

Object Relational Mapping

• Map object and relational DB automatically
• save burden to code SQL

• Object oriented programming: use class
• Relational DB: use table
• thus, there is mismatch between Object model and Relational model

• ORM maps the relation between objects, create SQL

• 👍🏻 with OOP, focus more on business logic
• 👍🏻 code reusability
• 👍🏻 less dependent on DBMS
• 👎🏻 difficult to create service with only ORM
• 👎🏻 difficult when there is a lot of procedure
• 👎🏻 less functions than MyBatis

✅ MyBatis

• manage framework, SQL
• 👍🏻 more functions than ORM
• 👎🏻 need SQL coding
• 👎🏻 need to manage between object and database