CONNECTION_ID
Return the connection id for the connection.
Syntax
SELECT CONNECTION_ID()
Examples
mysql> SELECT CONNECTION_ID();
+-------------------------------------------------------+
| CONNECTION_ID('9b16ca73-e393-43bb-a77b-fa546e1b7b69') |
+-------------------------------------------------------+
| 9b16ca73-e393-43bb-a77b-fa546e1b7b69 |
+-------------------------------------------------------+