MS SQL – Find number of open connections

If you need to find out how many connections are open, use the following script:

SELECT 
    DB_NAME(dbid) as DBName, 
    COUNT(dbid) as NumberOfConnections,
    loginame as LoginName
FROM
    sys.sysprocesses
WHERE 
    dbid > 0
GROUP BY 
    dbid, loginame

This will list all databases, number of open connections and DB logins under which those connections are open.

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