Recommendation for potentially missing indexes. Note: The indexes analysis requires more time, so you may run this query scheduled, saving the output results for a further deeper analysis
SELECT migs.avg_total_user_cost * (migs.avg_user_impact / 100.0) * (migs.user_seeks + migs.user_scans) AS improvement_measure ,'CREATE INDEX [IX_' + CONVERT(VARCHAR, mig.index_group_handle) + '_' + CONVERT(VARCHAR, mid.index_handle) + '_' + LEFT(PARSENAME(mid.STATEMENT, 1), 32) + ']' + ' ON ' + mid.STATEMENT + ' (' + ISNULL(mid.equality_columns, '') + CASE WHEN mid.equality_columns IS NOT NULL AND mid.inequality_columns IS NOT NULL THEN ',' ELSE '' END + ISNULL(mid.inequality_columns, '') + ')' + ISNULL(' INCLUDE (' + mid.included_columns + ')', '') AS create_index_statement ,migs.* ,mid.database_id ,mid.[object_id] FROM [sys].dm_db_missing_index_groups mig INNER JOIN [sys].dm_db_missing_index_group_stats migs ON migs.group_handle = mig.index_group_handle INNER JOIN [sys].dm_db_missing_index_details mid ON mig.index_handle = mid.index_handle WHERE migs.avg_total_user_cost * (migs.avg_user_impact / 100.0) * (migs.user_seeks + migs.user_scans) > 10 ORDER BY migs.avg_total_user_cost * migs.avg_user_impact * (migs.user_seeks + migs.user_scans) DESC;
Missing index help to improve performance.
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