标签：
SELECT
mig.index_group_handle, mid.index_handle,
CONVERT (decimal (28,1),
migs.avg_total_user_cost * migs.avg_user_impact * (migs.user_seeks + migs.user_scans)
) AS improvement_measure,
‘create index IDX_‘ + OBJECT_NAME(object_id,database_id) + ‘_Missing_‘ +
replace(replace(replace(replace(ISNULL (mid.equality_columns,‘‘) + ‘_‘ +
ISNULL (mid.inequality_columns, ‘‘), ‘,‘, ‘_‘), ‘ ‘, ‘‘), ‘[‘, ‘‘), ‘]‘, ‘‘) +
‘ on [‘ + OBJECT_NAME(object_id,database_id) + ‘] (‘ + 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 (‘ + included_columns + ‘)‘,‘‘) + ‘ WITH (ONLINE=ON)‘ 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 CONVERT (decimal (28,1), migs.avg_total_user_cost * migs.avg_user_impact * (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
标签：
原文地址：http://www.cnblogs.com/yuannfei19841121/p/4832645.html
