The Ultimate Guide to High Availability with MariaDB

CONNECTION_ID

Syntax

CONNECTION_ID()

Description

Returns the connection ID for the connection. Every connection (including events) has an ID that is unique among the set of currently connected clients.

Until MariaDB 10.3.1, returns MYSQL_TYPE_LONGLONG, or bigint(10). From MariaDB 10.3.1, returns MYSQL_TYPE_LONG, or int(10).

Examples

SELECT CONNECTION_ID();
+-----------------+
| CONNECTION_ID() |
+-----------------+
|               3 |
+-----------------+

See Also

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