SQL SERVER can provide the syntax for performance

SELECT
Avg_user_impact as Average_improvement_percentage,
Avg_total_user_cost as Average_cost_of_query_without_missing_index,
' CREATE INDEX ix_ ' + [statement] +
ISNULL (Equality_columns, ' _ ') +
ISNULL (Inequality_columns, ' _ ') + ' on ' + [statement] +
' (' + ISNULL (equality_columns, ') +
ISNULL (Inequality_columns, ') + ') ' +
ISNULL (' INCLUDE (' + included_columns + ') ', ')
As Create_missing_index_command
From Sys.dm_db_missing_index_details a INNER JOIN
Sys.dm_db_missing_index_groups b on a.index_handle = B.index_handle
INNER JOIN sys.dm_db_missing_index_group_stats C on
B.index_group_handle = C.group_handle
WHERE avg_user_impact > = 40

SQL SERVER can provide the syntax for performance