ClickHouse supports the MySQL wire protocol. This allow tools that are MySQL-compatible to interact with ClickHouse seamlessly (e.g. [Looker Studio](../integrations/data-visualization/looker-studio-and-clickhouse.md)).
The MySQL interface for ClickHouse Cloud is currently in private preview. Please contact support@clickhouse.com to enable this feature for your ClickHouse Cloud service.
2. Toggle the switch to enable the MySQL interface for this specific service. This will expose port `3306` for this service and prompt you with your MySQL connection screen that include your unique MySQL username. The password will be the same as the service's default user password.
1. Ensure your service is in `Running` state then click on the "View connection string" button for the service you want to enable the MySQL interface for
Add the [mysql_port](../operations/server-configuration-parameters/settings.md#server_configuration_parameters-mysql_port) setting to your server's configuration file. For example, you could define the port in a new XML file in your `config.d/` [folder](../operations/configuration-files):
For compatibility with all MySQL clients, it is recommended to specify user password with [double SHA1](../operations/settings/settings-users.md#password_double_sha1_hex) in configuration file.
If user password is specified using [SHA256](../operations/settings/settings-users.md#password_sha256_hex), some clients won’t be able to authenticate (mysqljs and old versions of command-line tool MySQL and MariaDB).
To cancel a long query use `KILL QUERY connection_id` statement (it is replaced with `KILL QUERY WHERE query_id = connection_id` while proceeding). For example: