How to check the number of connections in SQL Server?

To view the number of connections to SQL Server, you can use one of the following methods:

1. To check the current number of connections in SQL Server Management Studio (SSMS), open SSMS, connect to the appropriate SQL Server instance, and view the connection count in the “Activity Monitor” window. In the “Activity Monitor” window on the left, select the “Processes” tab to see the current number of connections.
2. Use Transact-SQL query: In SQL Server, you can use the following query statement to view the number of connections.

SELECT COUNT(*) AS '当前连接数'
FROM sys.dm_exec_sessions;

The above query will return the current number of connections.

1. Utilize Performance Monitor: Open Performance Monitor, add a new counter, and select the “User Connections” counter from the “SQL Server: General Statistics” category. This counter will display the current number of connections.

These methods can help you monitor the connection count of SQL Server. Depending on your specific needs and environment, you can choose the method that best suits you.