查看执行计划变化的SQL
select a.sql_id,a.exes,a.rowds,a.plan_hash_value,b.plan_hash_value,a.etimes,b.etimes from ( SELECT DISTINCT a.sql_id, a.plan_hash_value, a.executions_delta exes, ROUND (a.elapsed_time_delta / a.executions_delta / 1000000, 2) etimes, a.ROWS_PROCESSED_DELTA rowds FROM dba_hist_sqlstat a, DBA_HIST_SNAPSHOT b WHERE a.snap_id = b.snap_id and b.END_INTERVAL_TIME between sysdate-1/24 and sysdate AND a.executions_delta > 0) a, (select sql_id,plan_hash_value,round((ELAPSED_TIME/EXECUTIONS)/1000000,2) etimes from v$sql) b where a.sql_id=b.sql_id and a.plan_hash_value<>b.plan_hash_value;