sqlserver查看正在执行的语句，锁，内存，cpu占用多等

sqlserver查看正在执行的语句

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
AND session_Id NOT IN (@@SPID)

sqlserver查询消耗CPU最多的语句

select spid,cmd,cpu,physical_io,memusage,
(select top 1 [text] from ::fn_get_sql(sql_handle)) sql_text
from master..sysprocesses order by cpu desc,physical_io desc

sqlserver查看正在执行的sql锁阻塞，CPU占用高

SELECT TOP 10[session_id],[request_id],[start_time] AS '开始时间',[status] AS '状态',[command] AS '命令',dest.[text] AS 'sql语句', DB_NAME([database_id]) AS '数据库名',[blocking_session_id] AS '正在阻塞其他会话的会话ID',der.[wait_type] AS '等待资源类型',[wait_time] AS '等待时间',[wait_resource] AS '等待的资源',[dows].[waiting_tasks_count] AS '当前正在进行等待的任务数',[reads] AS '物理读次数',[writes] AS '写次数',[logical_reads] AS '逻辑读次数',[row_count] AS '返回结果行数'FROM sys.[dm_exec_requests] AS der INNER JOIN [sys].[dm_os_wait_stats] AS dows ON der.[wait_type]=[dows].[wait_type]CROSS APPLY sys.[dm_exec_sql_text](der.[sql_handle]) AS dest WHERE [session_id]>50  ORDER BY [cpu_time] DESCkill  blocking_session_id查看占用CPU高的SQL
SELECT TOP 100 cpu_time,
dest.[text] AS 'sql语句'
FROM sys.[dm_exec_requests] AS der 
CROSS APPLY 
sys.[dm_exec_sql_text](der.[sql_handle]) AS dest 
WHERE [session_id]>50  
ORDER BY [cpu_time] DESC

查询SQLSERVER执行过的SQL记录

SELECT TOP 2000 
--创建时间 
QS.creation_time, 
--查询语句 
SUBSTRING(ST.text,(QS.statement_start_offset/2)+1, 
((CASE QS.statement_end_offset WHEN -1 THEN DATALENGTH(st.text) 
ELSE QS.statement_end_offset END - QS.statement_start_offset)/2) + 1 
) AS statement_text, 
--执行文本 
ST.text, 
--执行计划 
QS.total_worker_time, 
QS.last_worker_time, 
QS.max_worker_time, 
QS.min_worker_time 
FROM 
sys.dm_exec_query_stats QS 
--关键字 
CROSS APPLY 
sys.dm_exec_sql_text(QS.sql_handle) ST 
WHERE 
QS.creation_time BETWEEN '2015-01-03 09:00:00' AND '2016-04-01 11:00:00' 
AND ST.text LIKE 'select%' 
ORDER BY 
QS.creation_time DESC