zoukankan      html  css  js  c++  java
  • oracle执行计划走偏处理步骤

    -- sql执行时间
    select a.EXECUTIONS,a.ELAPSED_TIME,a.ELAPSED_TIME/a.EXECUTIONS/1000/1000 as 秒,a.SQL_ID,a.HASH_VALUE,a.address,a.SQL_TEXT from gv$session b,gv$sql a where a.hash_value=b.SQL_HASH_VALUE and username in ('ZLCFTPUB','ZLCFTUSER') and status='ACTIVE';
    0nx7fbv1w5xg2
    0nx7fbv1w5xg2

    select sql_id,a.* from gv$session a where username in('ZLCFTPUB','ZLCFTUSER') and status='ACTIVE';
    -- select 'alter system kill session '''||sid||','||serial#||''';' from gv$session where username='ZLCFTPUB' and status='ACTIVE'

    select * from gv$sql a where a.PARSING_SCHEMA_NAME in('ZLCFTPUB','ZLCFTUSER');

    -- 执行计划解析
    select * from table(dbms_xplan.display_cursor('0nx7fbv1w5xg2',null,'ADVANCED ALLSTATS LAST PEEKED_BINDS')) --where PLAN_TABLE_OUTPUT like '%FULL%';
    select * from table(dbms_xplan.display_cursor('0nx7fbv1w5xg2'));
    select * from table(dbms_xplan.display_awr('0nx7fbv1w5xg2'));

    3janh23tkjac4
    a77srfk7ybrn8

    -- sql语句
    select * from v$sql where sql_id='0nx7fbv1w5xg2'

    -- 存储过程
    SELECT OBJECT_NAME,CREATED,LAST_DDL_TIME FROM USER_OBJECTS WHERE OBJECT_TYPE ='PROCEDURE' order by last_ddl_time desc;

    -- 最新执行的sql
    select sql_text,last_load_time from v$sql order by last_load_time desc;

  • 相关阅读:
    跟我一起玩Win32开发(转自CSDN-东邪独孤)
    c指针讲解
    9×9扫雷游戏代码-C写的
    Winform GDI+ 相关资料
    hadoop datanode 和namenode之间的心跳
    打包 压缩 命令tar zip
    kudu 问题集
    配置NTP服务ntpd/ntp.conf
    kudu 1.8.0(开发版) 源码安装
    hue 集成spark+livy
  • 原文地址:https://www.cnblogs.com/niubaba/p/9597259.html
Copyright © 2011-2022 走看看