SQL Server Wait Events -3

Hi,

You should find that which of wait events are in the SQL Server database.

 

Read previous article with following link

SQL Server Wait Events -2

 

To solve slowness of SQL Server database, you should find which wait events exists in the database.

You can find wait events of database with following query.

 

SELECT getdate() as 'Run_Time' --script running time
    , wait_type --wait type
    ,waiting_tasks_count
	, CAST(wait_time_ms / 1000. AS DECIMAL(12, 2)) AS wait_time_s --saniye cinsinden bekleme zamaný
	, CAST(100. * wait_time_ms / SUM(wait_time_ms) OVER() AS DECIMAL(12, 2)) AS pct --toplam beklemeye oraný
FROM sys.dm_os_wait_stats
WHERE wait_type NOT IN ('BROKER_TASK_STOP','Total','SLEEP','BROKER_EVENTHANDLER','BROKER_RECEIVE_WAITFOR',
      'BROKER_TRANSMITTER','CHECKPOINT_QUEUE','CHKPT,CLR_AUTO_EVENT','CLR_MANUAL_EVENT','KSOURCE_WAKEUP','LAZYWRITER_SLEEP',
      'LOGMGR_QUEUE','ONDEMAND_TASK_QUEUE','REQUEST_FOR_DEADLOCK_SEARCH','RESOURCE_QUEUE','SERVER_IDLE_CHECK',
      'SLEEP_BPOOL_FLUSH','SLEEP_DBSTARTUP','SLEEP_DCOMSTARTUP','SLEEP_MSDBSTARTUP','SLEEP_SYSTEMTASK','SLEEP_TASK',
      'SLEEP_TEMPDBSTARTUP','SNI_HTTP_ACCEPT','SQLTRACE_BUFFER_FLUSH','TRACEWRITE','WAIT_FOR_RESULTS','WAITFOR_TASKSHUTDOWN',
       'XE_DISPATCHER_WAIT','XE_TIMER_EVENT','WAITFOR')
ORDER BY 4 DESC

 

 

Do you want to learn Microsoft SQL Server DBA Tutorials for Beginners, then read the following articles.

https://ittutorial.org/sql-server-tutorials-microsoft-database-for-beginners/

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About Mehmet Salih Deveci

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I am Founder of SysDBASoft IT and IT Tutorial and Certified Expert about Oracle & SQL Server database, Goldengate, Exadata Machine, Oracle Database Appliance administrator with 10+years experience. I have OCA, OCP, OCE RAC Expert Certificates I have worked 100+ Banking, Insurance, Finance, Telco and etc. clients as a Consultant, Insource or Outsource. I have done 200+ Operations in this clients such as Exadata Installation & PoC & Migration & Upgrade, Oracle & SQL Server Database Upgrade, Oracle RAC Installation, SQL Server AlwaysOn Installation, Database Migration, Disaster Recovery, Backup Restore, Performance Tuning, Periodic Healthchecks. I have done 2000+ Table replication with Goldengate or SQL Server Replication tool for DWH Databases in many clients. If you need Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS Consultancy and Training you can send my email adress mehmetsalih.deveci@outlook.com. -                                                                                                                                                                                                                                                 - Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS ve linux Danışmanlık ve Eğitim için  mehmetsalih.deveci@outlook.com a mail atabilirsiniz.

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