SQL Server 死锁 sql 定位

--查询死锁 
select
    request_session_id spid,
    OBJECT_NAME(resource_associated_entity_id) tableName
from
    sys.dm_tran_locks
where
    resource_type='OBJECT'



kill 57  --关闭死锁

exec sp_lock --查询所有锁信息

DBCC INPUTBUFFER(73)  --查询指定死锁id的sql语句



-----查询时间段内sql的执行时间

declare @beginTime varchar(23),
        @endTime varchar(23)
set @beginTime='2021-11-12 15:00:00.000'
set @endTime='2021-11-12 16:00:00.000'
SELECT
(total_elapsed_time / execution_count)/1000 N'平均时间ms'
,total_elapsed_time/1000 N'总花费时间ms'
,total_worker_time/1000 N'所用的CPU总时间ms'
,total_physical_reads N'物理读取总次数'
,total_logical_reads/execution_count N'每次逻辑读次数'
,total_logical_reads N'逻辑读取总次数'
,total_logical_writes N'逻辑写入总次数'
,execution_count N'执行次数'
,SUBSTRING(st.text, (qs.statement_start_offset/2) + 1,
((CASE statement_end_offset
WHEN -1 THEN DATALENGTH(st.text)
ELSE qs.statement_end_offset END
- qs.statement_start_offset)/2) + 1) N'执行语句'
,creation_time N'语句编译时间'
,last_execution_time N'上次执行时间'
FROM
sys.dm_exec_query_stats AS qs CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) as st
WHERE
SUBSTRING(st.text, (qs.statement_start_offset/2) + 1,
((CASE statement_end_offset
WHEN -1 THEN DATALENGTH(st.text)
ELSE qs.statement_end_offset END
- qs.statement_start_offset)/2) + 1) not like '%fetch%'
and creation_time between @beginTime and @endTime
ORDER BY 
total_elapsed_time / execution_count DESC;