# H2 Welcome to H2, the Java SQL database. The main features of H2 are: * Very fast, open source, JDBC API * Embedded and server modes; in-memory databases * Browser based Console application * Small footprint: around 1.5 MB jar file size ## Experimental Building & Testing with Maven ### Building H2 uses [Maven Wrapper](https://github.com/takari/maven-wrapper) setup, you can instruct users to run wrapper scripts: > $ ./mvnw clean test or > $ ./mvnw.cmd clean test ### Running You can run the server like this ``` mvn exec:java -Dexec.mainClass=org.h2.tools.Server ```