SQL语句实现查询并自动创建Missing Index

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 NULL AND mid.inequality_columnsIS NOT 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_statsmigs ON migs.group_handle= mig.index_group_handle

INNER JOIN sys.dm_db_missing_index_detailsmid 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