How to connect grafana to influxdbv2 by InfluxQL method

Hi, my english is not good also,
Anyway, thanks for your help, but I would like to ask you if the database and retention policy that must be created, document of point 1:

influx v1 dbrp create
–db example-db
–rp example-rp \

needs to be something special or just a name that you decide to use, the same for retention policy.

Regards, thanks again.