How to set up the connection time between heidisql and MySQL DB？

Heidisql will automatically disconnect from the MySQL DB after a period of time.

In the session manager, on the "Advanced" tab, you can set a "Ping every X seconds" setting. Set that to some value lower than the timeout of your server and you won't get timeouts any more.

I can easily set the connection which is really important for us. And which is very helpful for us.