# Can't use Firebird database. Please guide me how to implement it?

**URL:** <https://forum.keycloak.org/t/cant-use-firebird-database-please-guide-me-how-to-implement-it/6569>\
**Category:** Configuring the server\
**Created:** [December 29, 2020, 7:23am UTC](https://forum.keycloak.org/t/cant-use-firebird-database-please-guide-me-how-to-implement-it/6569 "2020-12-29T07:23:00Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![aggoun](https://avatars.discourse-cdn.com/v4/letter/a/c4cdca/32.png) [@aggoun](https://forum.keycloak.org/u/aggoun)\
**Post date:** [March 10, 2021, 7:32am UTC](https://forum.keycloak.org/t/cant-use-firebird-database-please-guide-me-how-to-implement-it/6569/4 "2021-03-10T07:32:28Z")

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maybe it will help you

> [@Run Keycloak with database contains data](http://forum.keycloak.org/t/run-keycloak-with-database-contains-data/7788):
>
> hello, i configured keycloak with mysql database and it worked, i created a realm, user, role for test and everything was fine, I stopped keycloak and restarted it with \>standalone.bat and i got this error: FATAL [org.keycloak.services] (ServerService Thread Pool – 65) Error during startup: java.lang.RuntimeException: Exception invoking method [listUnrunChangeSets] on object [liquibase.Liquibase@f0132b4], using arguments [null,(),false] if i delete the database and recreate it and run keyc…

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