PolePosition benchmark results

Complex: write, read, query, update and delete complex object graph
Nestedlists: write and read nested lists
Inheritancehierarchy: writes, reads, queries and deletes objects with a 5 level inheritance structure
Flatobject: write, query, update and delete indexed flat objects

db4o/8.0.174.15231: the open source object database for Java and .NET
JDBC/HXTT Cobol: lightweight 100% Java engine for Cobol data, which includes FB (fixed block) file, VB (variable block) file, FB sequential file, VB sequential file, FB relative file, IBM mainframe line sequential file, PC line sequential file, Open Cobol MVS VB file, Fujitsu NetCOBOL VB file, MicroFocus VB sequential file, MicroFocus VB relative file, AcuCobol Vision data file, and so on.
JDBC/MySQL: the world's most popular open source database
JDBC/Mckoi: an open source Java SQL database system
JDBC/PostgreSQL: the world's most advanced open source database
JDBC/SQLite: a small C library that implements a self-contained, embeddable, zero-configuration SQL database engine.
JDBC/JavaDB: Sun's supported distribution of Apache Derby
JDBC/HSQLDB: lightweight 100% Java SQL database engine