SQL Server Performance TOP IO Query -1


If you got slowness complaint from customer,  you need to monitor SQL Server Instance and database which sql is consuming a lots of resource.


SQL Server DBA should monitor database everytime and if there are many sqls which is running long execution time or consuming a lots of IO resource then it should be reported to the developer and developer and dba should examine these sqls.


You can find TOP IOqueries in SQL Server database with following query.

       ((case statement_end_offset
          when -1 then DATALENGTH(st.text)
          else qs.statement_end_offset end
          - qs.statement_start_offset)/2) +1) as statement_text,
      from sys.dm_exec_query_stats as qs
   cross apply sys.dm_exec_sql_text(qs.sql_handle) as st 
order by qs.total_logical_reads desc, qs.execution_count desc


Query result will be like following screenshot




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


About Mehmet Salih Deveci

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 [email protected].-                                                                                                                                                                                                                                                 -Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS ve linux Danışmanlık ve Eğitim için  [email protected] a mail atabilirsiniz.

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