标签:comm and left join select round 查看 join _id where
一、查询执行最慢的sql
select * from (select sa.SQL_TEXT, sa.SQL_FULLTEXT, sa.EXECUTIONS "执行次数", round(sa.ELAPSED_TIME / 1000000, 2) "总执行时间", round(sa.ELAPSED_TIME / 1000000 / sa.EXECUTIONS, 2) "平均执行时间", sa.COMMAND_TYPE, sa.PARSING_USER_ID "用户ID", u.username "用户名", sa.HASH_VALUE from v$sqlarea sa left join all_users u on sa.PARSING_USER_ID = u.user_id where sa.EXECUTIONS > 0 order by (sa.ELAPSED_TIME / sa.EXECUTIONS) desc) where rownum <= 50;
二、查询次数最多的 sql
select * from (select s.SQL_TEXT, s.EXECUTIONS "执行次数", s.PARSING_USER_ID "用户名", rank() over(order by EXECUTIONS desc) EXEC_RANK from v$sql s left join all_users u on u.USER_ID = s.PARSING_USER_ID) t where exec_rank <= 100;
标签:comm and left join select round 查看 join _id where
原文地址:https://www.cnblogs.com/1GB-wjw/p/14609128.html