How can store event in, out, create, cancel meeting room to MySQL


Hi team,
I want store event information of meeting room and participants attend to DB Mysql.
Pls tell me How can i do that?



The proper place to do it insied lua you need to develop your own module. There are plenty of examples here:
There are events like muc-room-created, muc-occupant-joined
You can also take a look at which extracts display name of participants for the speaker stats.