檢查oracle 表統計信息是否過期

--刷新數據庫監控信息：
exec dbms_stats.flush_database_monitoring_info;

--過期狀態查看：stale_stats 狀態是否爲“YES”
select owner,table_name,object_type,stale_stats,last_analyzed 
from dba_tab_statistics
where owner=''
and table_name='';

--過期原因
select table_owner,table_name,inserts,updates,deletes,timestamp 
from all_tab_modifications
where table_owner=''
and table_name='';