--who3 to check active sessions in SQL Server.
SELECT
SPID = er.session_id
,BlkBy = er.blocking_session_id
,ElapsedMS = er.total_elapsed_time
,CPU = er.cpu_time
,IOReads = er.logical_reads + er.reads
,IOWrites = er.writes
,Executions = ec.execution_count
,CommandType = er.command
,ObjectName = OBJECT_SCHEMA_NAME(qt.objectid,dbid) + '.' + OBJECT_NAME(qt.objectid, qt.dbid)
,SQLStatement =
SUBSTRING
(
qt.text,
er.statement_start_offset/2,
(CASE WHEN er.statement_end_offset = -1
THEN LEN(CONVERT(nvarchar(MAX), qt.text)) * 2
ELSE er.statement_end_offset
END - er.statement_start_offset)/2
)
,STATUS = ses.STATUS
,[Login] = ses.login_name
,Host = ses.host_name
,DBName = DB_Name(er.database_id)
,LastWaitType = er.last_wait_type
,StartTime = er.start_time
,Protocol = con.net_transport
,transaction_isolation =
CASE ses.transaction_isolation_level
WHEN 0 THEN 'Unspecified'
WHEN 1 THEN 'Read Uncommitted'
WHEN 2 THEN 'Read Committed'
WHEN 3 THEN 'Repeatable'
WHEN 4 THEN 'Serializable'
WHEN 5 THEN 'Snapshot'
END
,ConnectionWrites = con.num_writes
,ConnectionReads = con.num_reads
,ClientAddress = con.client_net_address
,Authentication = con.auth_scheme
FROM sys.dm_exec_requests er
LEFT JOIN sys.dm_exec_sessions ses
ON ses.session_id = er.session_id
LEFT JOIN sys.dm_exec_connections con
ON con.session_id = ses.session_id
CROSS APPLY sys.dm_exec_sql_text(er.sql_handle) AS qt
OUTER APPLY
(
SELECT execution_count = MAX(cp.usecounts)
FROM sys.dm_exec_cached_plans cp
WHERE cp.plan_handle = er.plan_handle
) ec
ORDER BY
er.blocking_session_id DESC,
er.logical_reads + er.reads DESC,
er.session_id