Created
March 27, 2018 12:09
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Find out missing indexes for queries running on the database.
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SELECT TOP 20 | |
total_worker_time/execution_count AS Avg_CPU_Time | |
,Execution_count | |
,total_elapsed_time/execution_count as AVG_Run_Time | |
,total_elapsed_time | |
,(SELECT | |
SUBSTRING(text,statement_start_offset/2+1,statement_end_offset | |
) FROM sys.dm_exec_sql_text(sql_handle) | |
) AS Query_Text | |
FROM sys.dm_exec_query_stats | |
ORDER BY Avg_CPU_Time DESC | |
SET TRANSACTION ISOLATION LEVEL | |
READ UNCOMMITTED | |
SELECT TOP 20 | |
ROUND(s.avg_total_user_cost * | |
s.avg_user_impact | |
* (s.user_seeks + s.user_scans),0) | |
AS [Total Cost] | |
,d.[statement] AS [Table Name] | |
,equality_columns | |
,inequality_columns | |
,included_columns | |
FROM sys.dm_db_missing_index_groups g | |
INNER JOIN sys.dm_db_missing_index_group_stats s | |
ON s.group_handle = g.index_group_handle | |
INNER JOIN sys.dm_db_missing_index_details d | |
ON d.index_handle = g.index_handle | |
ORDER BY [Total Cost] DESC |
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