How to query the number of database connections in MySQL?

To inquire about the number of connections to the MySQL database, you can follow these steps:

1. Log in to the MySQL server:

mysql -u username -p

After entering the MySQL command line interface, use the command below to view current connection information:

SHOW STATUS LIKE 'Threads_connected';

This command will return a result set that includes the value of the variable `Threads_connected`, which represents the current number of connections.

Please note that this method only retrieves the current connection count and does not display statistics for previously closed connections.

If you want to learn more about the statistical information on MySQL connections, you may want to consider using advanced tools like `performance_schema` or `information_schema` for querying.