ALTER DATABASE $name$ [ [ WITH ] $option$ [ ... ] ]

ALTER DATABASE $name$ RENAME TO $new_name$

ALTER DATABASE $name$ OWNER TO { $new_owner$ | CURRENT_ROLE | CURRENT_USER | SESSION_USER }

ALTER DATABASE $name$ SET TABLESPACE $new_tablespace$

ALTER DATABASE $name$ REFRESH COLLATION VERSION

ALTER DATABASE $name$ SET $configuration_parameter$ { TO | = } { $value$ | DEFAULT }

ALTER DATABASE $name$ SET $configuration_parameter$ FROM CURRENT

ALTER DATABASE $name$ RESET $configuration_parameter$

ALTER DATABASE $name$ RESET ALL

where $option$ is:

ALLOW_CONNECTIONS $allowconn$ |
    CONNECTION LIMIT $connlimit$ |
    IS_TEMPLATE $istemplate$