Java and Database Connectivity: Slide 24

Java and Database Connectivity

Types of database systems

SQL is the language of Relational databases; other database models include
- Hierarchical databases
- Object-Oriented databases
Been around a long time, and have their merits, but none has been so generally useful as the Relational model.
Most database systems are relational database systems
Most relational database management systems (RDBMS) understand SQL
Most, unfortunately, also include proprietary extensions.