HSQLDB is a relational database engine written in Java, with a JDBC driver, conforming to ANSI SQL:2023. A small, fast, multithreaded engine and server with memory and disk tables, LOBs, transaction isolation, multiversion concurrency and ACID.
Connection Pooling
Support all known Database – driver required for java
Easy to create Object Relations
No need to write DDL statements
No Need to write DML statements
XML-RPC service over http
New Fields
Object Pooling
Easy to add New Service