Database Express Edition 10g: Oracle

Supports standard programming interfaces, including SQL, PL/SQL, Java, C, and PHP .

Although you should not use Oracle 10g XE for any modern development (it is end-of-life and poses security risks), its legacy is vital. oracle database express edition 10g

Oracle XE 10g was introduced to compete with free databases like MySQL and PostgreSQL. It provided the core SQL engine, PL/SQL, and key features of Oracle 10g but with strict hardware and data caps. Supports standard programming interfaces