从V$SQLAREA中查询最占用资源的查询 select b.username username,a.disk_reads reads,a.executions exec,a.disk_reads/decode(a.executions,0,1,a.executions) rds_exec_ratio,a.sql_text Statementfrom v$sqlarea a,dba_users bwhere a.parsing_user_id=b.user_idand a.disk_reads…