識別具有巢狀迴圈的查詢

下列查詢可識別已針對巢狀迴路記錄提醒事件的查詢。如需如何修正巢狀迴路條件的資訊，請參閱巢狀迴圈。

select query, trim(querytxt) as SQL, starttime 
from stl_query 
where query in (
select distinct query 
from stl_alert_event_log 
where event like 'Nested Loop Join in the query plan%') 
order by starttime desc;