Accessing Mysql database inside the container

[creativehubspace]

When I try to docker exec -it mysql-container mysql -uapp -p , I keep getting Access denied for user 'app'@'localhost' (using password: YES) . What am I missing?
Running docker compose exec php bin/console dbal:run-sql -q "SELECT 1" && echo "OK" || echo "Connection is not working" does echo "OK", so the database connection is working as expected.

[Tovintsoa]

I have the same problem.

[TacticsJan]

I'm also facing the same issue with a psql database. My php container is connecting to it all fine but I am unable to connect to the db as a data source in PHPStorm or unable to connect to it from the database container.