SELECT
migs.avg_total_user_cost*(migs.avg_user_impact/ 100.0)*(migs.user_seeks+ migs.user_scans)ASimprovement_measure,
'CREATE INDEX[missing_index_' + 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 NULLAND mid.inequality_columnsISNOT NULL THEN ',' ELSE'' END
+ ISNULL(mid.inequality_columns,'')
+ ')'
+ ISNULL(' INCLUDE ('+ mid.included_columns+')', '') AScreate_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_statsmigsON migs.group_handle= mig.index_group_handle
INNER JOIN sys.dm_db_missing_index_detailsmidON 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
本文转自 lzf328 51CTO博客,原文链接: