SQL Server Performance TOP IO Query -2

Hi,

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 50 IO queries in SQL Server database with following query.

 

select 
    q.[text],
SUBSTRING(q.text, (highest_cpu_queries.statement_start_offset/2)+1, 
        ((CASE highest_cpu_queries.statement_end_offset
          WHEN -1 THEN DATALENGTH(q.text)
         ELSE highest_cpu_queries.statement_end_offset
         END - highest_cpu_queries.statement_start_offset)/2) + 1) AS statement_text,    
    
    highest_cpu_queries.total_worker_time,
    highest_cpu_queries.total_logical_reads,
	highest_cpu_queries.last_execution_time,
    highest_cpu_queries.execution_count,
    q.dbid,
    q.objectid,
    q.number,
    q.encrypted,
     highest_cpu_queries.plan_handle
from 
    (select top 50 
          qs.last_execution_time,
          qs.execution_count,
        qs.plan_handle, 
        qs.total_worker_time,
        qs.statement_start_offset,
        qs.statement_end_offset,
        qs.total_logical_reads
    from 
        sys.dm_exec_query_stats qs
    order by qs.total_worker_time desc) as highest_cpu_queries
    cross apply sys.dm_exec_sql_text(plan_handle) as q
order by highest_cpu_queries.total_logical_reads desc;

 

 

Mehmet Salih Deveci

I am Founder of 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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