Is there a way to list the queries that are currently running on MS SQL Server (either through the Enterprise Manager or SQL) and/or who's connected?
I think I've got a very long running query is being execute on one of my database servers and I'd like to track it down and stop it (or the person who keeps starting it).
This will show you the longest running SPIDs on a SQL 2000 or SQL 2005 server:
select
P.spid
, right(convert(varchar,
dateadd(ms, datediff(ms, P.last_batch, getdate()), '1900-01-01'),
121), 12) as 'batch_duration'
, P.program_name
, P.hostname
, P.loginame
from master.dbo.sysprocesses P
where P.spid > 50
and P.status not in ('background', 'sleeping')
and P.cmd not in ('AWAITING COMMAND'
,'MIRROR HANDLER'
,'LAZY WRITER'
,'CHECKPOINT SLEEP'
,'RA MANAGER')
order by batch_duration desc
If you need to see the SQL running for a given spid from the results, use something like this:
declare
@spid int
, @stmt_start int
, @stmt_end int
, @sql_handle binary(20)
set @spid = XXX -- Fill this in
select top 1
@sql_handle = sql_handle
, @stmt_start = case stmt_start when 0 then 0 else stmt_start / 2 end
, @stmt_end = case stmt_end when -1 then -1 else stmt_end / 2 end
from sys.sysprocesses
where spid = @spid
order by ecid
SELECT
SUBSTRING( text,
COALESCE(NULLIF(@stmt_start, 0), 1),
CASE @stmt_end
WHEN -1
THEN DATALENGTH(text)
ELSE
(@stmt_end - @stmt_start)
END
)
FROM ::fn_get_sql(@sql_handle)
If you're running SQL Server 2005 or 2008, you could use the DMV's to find this...
SELECT *
FROM sys.dm_exec_requests
CROSS APPLY sys.dm_exec_sql_text(sql_handle)
You can run the sp_who command to get a list of all the current users, sessions and processes. You can then run the KILL command on any spid that is blocking others.
As a note, the SQL Server Activity Monitor for SQL Server 2008 can be found by right clicking your current server and going to "Activity Monitor" in the context menu. I found this was easiest way to kill processes if you are using the SQL Server Management Studio.
I would suggest querying the sys views. something similar to
SELECT *
FROM
sys.dm_exec_sessions s
LEFT JOIN sys.dm_exec_connections c
ON s.session_id = c.session_id
LEFT JOIN sys.dm_db_task_space_usage tsu
ON tsu.session_id = s.session_id
LEFT JOIN sys.dm_os_tasks t
ON t.session_id = tsu.session_id
AND t.request_id = tsu.request_id
LEFT JOIN sys.dm_exec_requests r
ON r.session_id = tsu.session_id
AND r.request_id = tsu.request_id
OUTER APPLY sys.dm_exec_sql_text(r.sql_handle) TSQL
This way you can get a TotalPagesAllocated which can help you figure out the spid that is taking all the server resources. There has lots of times when I can't even bring up activity monitor and use these sys views to see what's going on.
I would recommend you reading the following article. I got this reference from here.
There are various management views built into the product. On SQL 2000 you'd use sysprocesses. On SQL 2K5 there are more views like sys.dm_exec_connections, sys.dm_exec_sessions and sys.dm_exec_requests.
There are also procedures like sp_who that leverage these views. In 2K5 Management Studio you also get Activity Monitor.
And last but not least there are community contributed scripts like the Who Is Active by Adam Machanic.
SELECT
p.spid, p.status, p.hostname, p.loginame, p.cpu, r.start_time, r.command,
p.program_name, text
FROM
sys.dm_exec_requests AS r,
master.dbo.sysprocesses AS p
CROSS APPLY sys.dm_exec_sql_text(p.sql_handle)
WHERE
p.status NOT IN ('sleeping', 'background')
AND r.session_id = p.spid
Actually, running EXEC sp_who2 in Query Analyzer / Management Studio gives more info than sp_who.
Beyond that you could set up SQL Profiler to watch all of the in and out traffic to the server. Profiler also let you narrow down exactly what you are watching for.
For SQL Server 2008:
START - All Programs - Microsoft SQL Server 2008 - Performance Tools - SQL Server Profiler
Keep in mind that the profiler is truly a logging and watching app. It will continue to log and watch as long as it is running. It could fill up text files or databases or hard drives, so be careful what you have it watch and for how long.
In the Object Explorer, drill-down to: Server -> Management -> Activity Monitor. This will allow you to see all connections on to the current server.
You can use below query to find running last request:
SELECT
der.session_id
,est.TEXT AS QueryText
,der.status
,der.blocking_session_id
,der.cpu_time
,der.total_elapsed_time
FROM sys.dm_exec_requests AS der
CROSS APPLY sys.dm_exec_sql_text(sql_handle) AS est
Using below script you can also find number of connection per database:
SELECT
DB_NAME(DBID) AS DataBaseName
,COUNT(DBID) AS NumberOfConnections
,LogiName
FROM sys.sysprocesses
WHERE DBID > 0
GROUP BY DBID, LogiName
For more details please visit: http://www.dbrnd.com/2015/06/script-to-find-running-process-session-logged-user-in-sql-server/
SELECT
p.spid, p.status, p.hostname, p.loginame, p.cpu, r.start_time, t.text
FROM
sys.dm_exec_requests as r,
master.dbo.sysprocesses as p
CROSS APPLY sys.dm_exec_sql_text(p.sql_handle) t
WHERE
p.status NOT IN ('sleeping', 'background')
AND r.session_id = p.spid
And
KILL @spid
The right script would be like this:
select
p.spid, p.status,p.hostname,p.loginame,p.cpu,r.start_time, t.text
from sys.dm_exec_requests as r, sys.sysprocesses p
cross apply sys.dm_exec_sql_text(p.sql_handle) t
where p.status not in ('sleeping', 'background')
and r.session_id=p.spid
here is a query that will show any queries that are blocking. I am not entirely sure if it will just show slow queries:
SELECT p.spid
,convert(char(12), d.name) db_name
, program_name
, convert(char(12), l.name) login_name
, convert(char(12), hostname) hostname
, cmd
, p.status
, p.blocked
, login_time
, last_batch
, p.spid
FROM master..sysprocesses p
JOIN master..sysdatabases d ON p.dbid = d.dbid
JOIN master..syslogins l ON p.sid = l.sid
WHERE p.blocked = 0
AND EXISTS ( SELECT 1
FROM master..sysprocesses p2
WHERE p2.blocked = p.spid )
in 2005 you can right click on a database, go to reports and there's a whole list of reports on transitions and locks etc...
Trying to put things together (hope to be helpful):
SELECT
p.spid,
RIGHT(CONVERT(varchar, DATEADD(ms, DATEDIFF(ms, p.last_batch, GETDATE()), '1900-01-01'), 121), 12) AS [batch_duration],
p.[program_name],
p.hostname,
MAX(p.loginame) AS loginame,
(SELECT SUBSTRING(text, COALESCE(NULLIF(spid.stmt_start, 0), 1) + 1, CASE spid.stmt_end WHEN -1 THEN DATALENGTH(text) ELSE (spid.stmt_end - spid.stmt_start) END) FROM ::fn_get_sql(spid.[sql_handle])) AS [sql]
FROM
master.dbo.sysprocesses p
LEFT JOIN (
SELECT
ROW_NUMBER() OVER(PARTITION BY spid ORDER BY ecid) AS i,
spid,
[sql_handle],
CASE stmt_start WHEN 0 THEN 0 ELSE stmt_start / 2 END AS stmt_start,
CASE stmt_end WHEN -1 THEN -1 ELSE stmt_end / 2 END AS stmt_end
FROM sys.sysprocesses
) spid ON p.spid = spid.spid AND spid.i = 1
WHERE
p.spid > 50
AND p.status NOT IN ('background', 'sleeping')
AND p.cmd NOT IN ('AWAITING COMMAND', 'MIRROR HANDLER', 'LAZY WRITER', 'CHECKPOINT SLEEP', 'RA MANAGER')
GROUP BY
p.spid,
p.last_batch,
p.[program_name],
p.hostname,
spid.stmt_start,
spid.stmt_end,
spid.[sql_handle]
ORDER BY
batch_duration DESC,
p.spid
;
You should try very usefull procedure sp_whoIsActive which can be found here: http://whoisactive.com and it is free.
Use Sql Server Profiler (tools menu) to monitor executing queries and use activity monitor in Management studio to see how is connected and if their connection is blocking other connections.
