H2 is an open source SQL database engine written in Java. It can be embedded in Java applications or run in the client-server mode. H2 supports regular disk-based as well as in-memory databases. The disk footprint (size of the jar file) is about 1 MB.

H2 is an open source SQL database engine written in Java. It can be embedded in Java applications or run in the client-server mode. H2 supports regular disk-based as well as in-memory databases. The disk footprint (size of the jar file) is about 1 MB.

The main author of H2 is Thomas Mueller, who also developed the Java database engine Hypersonic SQL. The name H2 stands for Hypersonic 2, however H2 does not share code with Hypersonic SQL or HSQLDB.

This tag is synonym for H2 tag

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