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SQL - Identify and kill a process/query that is running for a long time

SELECT sqltext.TEXT,req.session_id,req.status,req.command,req.cpu_time,req.total_elapsed_timeFROM sys.dm_exec_requests reqCROSS APPLY sys.dm_exec_sql_text(sql_handle) AS sqltext 
While running above query if you find any query which is running for long time it can be killed using following command.
KILL [session_id] 
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