Java + MySQL / PostgreSQL → Database Integration (Complete Guide)
📌 Introduction In modern backend development, databases are the backbone of any application. Java applications commonly use relational databases like MySQL and PostgreSQL for reliable data storage. 👉 Whether you're building microservices, enterprise systems, or workflow platforms, understanding database integration is essential. đź–Ľ️ Java Database Architecture 🔄 Flow: Java Application JDBC / ORM Layer Database (MySQL/PostgreSQL) Data returned to application 👉 Java interacts with databases via: JDBC (low-level) JPA/Hibernate (high-level ORM) 🔑 MySQL vs PostgreSQL Feature MySQL PostgreSQL Type RDBMS Advanced RDBMS Performance Fast reads Complex queries JSON Support Basic Advanced Use Case Web apps Enterprise systems 👉 Both are widely used in Java ecosystems. ⚙️ Connecting Java with Database (JDBC) 1️⃣ Add Dependency (Maven) MySQL: <dependency> <groupId> mysql </groupId> <artifactId> mysql-connector-j </artifactId> </dependency> Postg...