//查看被锁进程

SELECT blocking_session_id, wait_duration_ms, session_id FROM sys.dm_os_waiting_tasks ORDER BY wait_duration_ms desc;

--显示死锁进程相关信息
exec sp_who2 118;

--杀死死锁
KILL 217 

//显示当前运行的线程信息
    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 spid = '185'
    WHERE session_Id > 50              -- Ignore system spids.
    AND session_Id NOT IN (@@SPID)     -- Ignore this current statement.
    ORDER BY 1, 2;