How to check if a database exists?

Question

MySQL

Kind
Question such as to check up, whether the necessary DB already exists on the device? It is a database, not tables
As a crooked option, always create a database at startup, if it exists, then catch an exception, but this is somehow stupid

Answer 1

Connect and command
There will be a line in the answer - it means there is a database. Empty means none.
Plus, create database has idempotent behavior
dev.mysql.com/doc/refman/5.7/en/create-database.html