SELECT [Spid] = session_Id, ecid, [Database] = DB_NAME(sp.dbid),

[User] = nt_username, [Status] = er.status,
[Wait] = wait_type,
[Individual Query] = 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),
[Parent Query] = qt.text,
Program = program_name, Hostname,
nt_domain, start_time
FROM
sys.dm_exec_requests er INNER JOIN sys.sysprocesses sp ON er.session_id = sp.spid
CROSS APPLY sys.dm_exec_sql_text(er.sql_handle) AS qt
WHERE session_Id > 50 /* Ignore system spids.*/ AND session_Id NOT IN (@@SPID)

可以看到你的语句 的spid 假如spid = 55
然后执行kill 55 即可