Name

CONNECTION_ID()

Synopsis

CONNECTION_ID()

This function returns the MySQL connection or thread identification number for the MySQL session. There are no arguments. Connection identifiers are unique. Here is an example:

SELECT CONNECTION_ID( );

+------------------+
| CONNECTION_ID( ) |
+------------------+
|           11266  |
+------------------+

Get MySQL in a Nutshell, 2nd Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.