dataSources.xml

<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
  <component name="DataSourceManagerImpl" format="xml" multifile-model="true">
    <data-source source="LOCAL" name="@localhost" uuid="7964bdec-e778-4768-bdf5-f18b5b7f77b6">
      <driver-ref>mariadb</driver-ref>
      <synchronize>true</synchronize>
      <jdbc-driver>org.mariadb.jdbc.Driver</jdbc-driver>
      <jdbc-url>jdbc:mariadb://localhost:3306</jdbc-url>
      <working-dir>$ProjectFileDir$</working-dir>
    </data-source>
  </component>
</project>