dm_exec_query_plan – Database Research & Development https://www.dbrnd.com BIGData | NoSQL | MSSQL | MySQL | PostgreSQL Tue, 21 Nov 2017 05:47:29 +0000 en-US hourly 1 https://wordpress.org/?v=7.0.6 Script to Find Slowest Running Query in SQL Server https://www.dbrnd.com/2015/06/script-find-slowest-running-query-in-sql-server/ Sun, 21 Jun 2015 10:46:40 +0000 https://www.dbrnd.com/?p=271

In this post, I am sharing a script to find slowest running queries in SQL Server.

Below is a SQL Query:

SELECT TOP 10 
	SUBSTRING(qt.TEXT, (qs.statement_start_offset/2)+1,
	((CASE qs.statement_end_offset WHEN -1 THEN DATALENGTH(qt.TEXT)
	ELSE qs.statement_end_offset END - qs.statement_start_offset)/2)+1
	) AS Query
	,qp.query_plan
	,qs.execution_count
	,qs.total_logical_reads
	,qs.last_logical_reads
	,qs.total_logical_writes
	,qs.last_logical_writes
	,qs.total_worker_time
	,qs.last_worker_time
	,qs.total_elapsed_time
	,qs.last_elapsed_time
	,qs.last_execution_time	
FROM sys.dm_exec_query_stats qs
CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) qt
CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) qp
ORDER BY qs.total_logical_reads DESC
Using above query you can find top 10 slowest queries with query plan text.

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