What is H2 database used for?
H2 is a disk-based or in-memory databases and tables, read-only database support, temporary tables. H2 provides transaction support (read committed), 2-phase-commit multiple connections, table level locking. H2 is a cost-based optimizer, using a genetic algorithm for complex queries, zeroadministration.
How do I access my H2 memory database?
To access an in-memory database from another process or from another computer, you need to start a TCP server in the same process as the in-memory database was created. The other processes then need to access the database over TCP/IP or TLS, using a database URL such as: jdbc:h2:tcp://localhost/mem:db1 .
What is H2 database console?
The H2 Console application lets you access a database using a browser. This can be a H2 database, or another database that supports the JDBC API. This is a client/server application, so both a server and a client (a browser) are required to run it.
What is H2 programming?
H2 is a relational database management system written in Java. It can be embedded in Java applications or run in the client-server mode. It can be used also in a memory mode. H2 has a very small footprint. It somes with a browser based management application called H2 Console.
Is H2 an SQL database?
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.
Is H2 a relational DB?
H2 is a relational database management system written in Java. It can be embedded in Java applications or run in client-server mode.
How do I enable remote database in H2?
“h2 database allow remote database creation” Code Answer’s
- spring. datasource. url=jdbc:h2:~/test.
- spring. datasource. driverClassName=org. h2. Driver.
- spring. datasource. username=sa.
- spring. datasource. password=
- spring. jpa. database-platform=org. hibernate. dialect. H2Dialect.
How do I run H2 database locally?
Quickstart
- Add the h2*. jar to the classpath (H2 does not have any dependencies)
- Use the JDBC driver class: org. h2. Driver.
- The database URL jdbc:h2:~/test opens the database test in your user home directory.
- A new database is automatically created.
Where does H2 database store data?
H2 can be configured to run as an in-memory database, but it can also be persistent, e.g., its data will be stored on disk.
Is H2 a good database?
As of 2019, H2 is a superb database. We use it in all of our standalone applications since 4 years and we see it minimizes a gap between SQLite and MySQL. It performs as fast as or faster than MySQL.
Is H2 open source?
H2 is a relational database management system written in Java. It can be embedded in Java applications or run in client-server mode. The software is available as open source software Mozilla Public License 2.0 or the original Eclipse Public License.
How do you run a H2?
Using H2
- H2 is open source, free to use and distribute.
- Download: jar, installer (Windows), zip.
- To start the H2 Console tool, double click the jar file, or run java -jar h2*. jar , h2.
- A new database is automatically created by default if an embedded URL is used.
- Closing the last connection closes the database.