base on H2 is an embeddable RDBMS written in Java. [](https://github.com/h2database/h2database/actions?query=workflow%3ACI) # Welcome to H2, the Java SQL database. ## The main features of H2 are: * Very fast, open source, JDBC API * Embedded and server modes; disk-based or in-memory databases * Transaction support, multi-version concurrency * Browser based Console application * Encrypted databases * Fulltext search * Pure Java with small footprint: around 2.5 MB jar file size * ODBC driver More information: https://h2database.com ## Downloads [Download latest version](https://h2database.com/html/download.html) or add to `pom.xml`: ```XML <dependency> <groupId>com.h2database</groupId> <artifactId>h2</artifactId> <version>2.4.240</version> </dependency> ``` ## Documentation * [Tutorial](https://h2database.com/html/tutorial.html) * [SQL commands](https://h2database.com/html/commands.html) * [Functions](https://h2database.com/html/functions.html), [aggregate functions](https://h2database.com/html/functions-aggregate.html), [window functions](https://h2database.com/html/functions-window.html) * [Data types](https://h2database.com/html/datatypes.html) ## Support * [Issue tracker](https://github.com/h2database/h2database/issues) for bug reports and feature requests * [Mailing list / forum](https://groups.google.com/g/h2-database) for questions about H2 * ['h2' tag on Stack Overflow](https://stackoverflow.com/questions/tagged/h2) for other questions (Hibernate with H2 etc.) ", Assign "at most 3 tags" to the expected json: {"id":"1081","tags":[]} "only from the tags list I provide: []" returns me the "expected json"