SQL ServerIndexes
Missing index suggestions
The optimizer's own index wish list, ranked by estimated benefit. Treat as leads, not instructions: overlapping suggestions are common.
Not yet verified. How scripts are tested
1SELECT TOP (25)2 DB_NAME(mid.database_id) AS database_name,3 mid.statement AS table_name,4 mid.equality_columns, mid.inequality_columns, mid.included_columns,5 migs.user_seeks, migs.avg_user_impact,6 CAST(migs.user_seeks * migs.avg_total_user_cost * migs.avg_user_impact / 100.07 AS DECIMAL(18,2)) AS improvement_score8FROM sys.dm_db_missing_index_groups mig9JOIN sys.dm_db_missing_index_group_stats migs ON migs.group_handle = mig.index_group_handle10JOIN sys.dm_db_missing_index_details mid ON mid.index_handle = mig.index_handle11ORDER BY improvement_score DESC;Paste it into your query tool.
More SQL Server scripts: Indexes
- Fragmented indexes in the current databaseIndexes over 30% fragmented and larger than 1,000 pages, where a rebuild is worth considering. LIMITED mode keeps the scan cheap.