今更感があるけど、rails dbconsole
を利用すると、Railsで設定しているDBに、接続できるんですね。
$ rails dbconsole Enter password: Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Welcome to the MariaDB monitor. Commands end with ; or \g. Your MySQL connection id is 25 Server version: 8.0.19 MySQL Community Server - GPL Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. MySQL [hogedb_devel]>