Few days ago, I was searching MSDN and I stumbled upon following two global variables. Following variables are very briefly explained in the BOL. I have taken their definition from BOL and modified BOL example to displayed both the global variable together.
Returns the number of attempted connections, either successful or unsuccessful since SQL Server was last started.
Returns the maximum number of simultaneous user connections allowed on an instance of SQL Server. The number returned is not necessarily the number currently configured.
@@MAX_CONNECTIONS is the maximum number of connections allowed simultaneously to the server. @@CONNECTIONS is incremented with each login attempt, therefore @@CONNECTIONS can be greater than @@MAX_CONNECTIONS.
SELECT GETDATE() AS 'Currunt Time',
@@CONNECTIONS AS 'Total Logins so far',
@@MAX_CONNECTIONS AS 'Max Connection Simultaneously'
Currunt Time Total Logins so far Max Connection Simultaneously
———————– ——————- —————————–
2007-09-03 17:28:12.013 71 32767
Reference : Pinal Dave (https://blog.sqlauthority.com)