Tuesday, July 6, 2021

Missing Indexes for SQL Server

Missing Indexes for SQL Server 

SELECT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], 

migs.last_user_seek, mid.[statement] AS [Database.Schema.Table],

mid.equality_columns, mid.inequality_columns, mid.included_columns,

migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact

FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK)

INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK)

ON migs.group_handle = mig.index_group_handle

INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK)

ON mig.index_handle = mid.index_handle

ORDER BY index_advantage DESC OPTION (RECOMPILE);