DAO Layer → Database DAO uses JPA methods to query/update data in MySQL. Spring Boot Features Used. Entity Classes: User Columns: id, email, password, age. Notes Columns: nid, title, content, ...

I am checking a VB/DAO/Jet system, and have been tasked to make recommendations and feasibility cost estimates on it. ... Ado vs Dao in SQL sErver, MySQL, Postgresql, SAP.

📂 Project Structure pgsql Copy Edit src/ ├─ model/ – Entity classes: Patient, Doctor, Appointment, Billing ├─ service/ – Business logic handlers ├─ dao/ – Database access layer (JDBC helpers) ├─ ui/ ...