GetMissingIndexes.sql

SELECT
	migs.avg_total_user_cost * (migs.avg_user_impact / 100.0) * (migs.user_seeks + migs.user_scans) AS improvement_measure,
	'CREATE INDEX [IX_' + LEFT (PARSENAME(mid.statement, 1), 32) + '_' + REPLACE(REPLACE(REPLACE(ISNULL(mid.equality_columns,''), '[', ''), ']', ''), ',', '_')
	+ CASE WHEN mid.equality_columns IS NOT NULL AND mid.inequality_columns IS NOT NULL THEN '_' ELSE '' END
	+ REPLACE(REPLACE(REPLACE(ISNULL(mid.inequality_columns,''), '[', ''), ']', ''), ',', '_') 
	+ '] ON ' + REPLACE(mid.statement, '['+DB_NAME()+'].', '')
	+ ' (' + 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