Cry MySQL How to...

List all the connections

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To list all of the connections to the MySQL database server, use the following:

show processlist

This will return the same information that MySQL Administrator shows under "Server Connections".

If you need to avoid having the "info" field (which shows the current command being executed) then insert the "full" keyword:

show full processlist

If you need this as part of a query then use:

select * from information_schema.processlist

This allows you to filter the results, so for example to list all connections to the database "mydb":

select * from information_schema.processlist
where db='mydb'

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These notes have been tested against MySQL version 5.1.