StelsEngine - Java SQL engine for storing and fast data processing.
StelsEngine is a Java SQL engine for storing and processing tabular data in operating memory. Using StelsEngine, you can make processing data in your software application considerably easier and quicker. StelsEngine is as easy to use as possible since it implements the JDBC API standard.
Features: it is JDBC Type 4 driver, supports most keywords of ANSI SQL 92, supports integer, floating point, string and date/time data types, supports aggregate, converting, string and user-defined SQL functions, supports data loading from a DBMS, platform independent.