SQL to check if database is empty (no tables)

Question

I need to check if a database is totally empty (no tables) using an SQL query. How can this be done?

Thanks for the help!

Answer 1

In bash:

db_name='my_db'
mysql -s --skip-column-names -e "SELECT COUNT(DISTINCT table_name) FROM information_schema.columns WHERE table_schema = '$db_name'"