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  • 简单查询plan

    ->

    alter session set statistics_level=all;

    select /*+ gathe_plan_statistics */ * from ts.ts_record t where system_name='人员小车闸口' order by pass_datetime desc;

    select sql_text,sql_id from v$sql where sql_text like 'select%*%人员小车闸口%';

    -> pl/sql developer

    login in app user

    run the app sql

    get from sql from session monitor .

    -->

    sqlplus / as sysdba

    spool D:dba mpsql_dev.log

    select * from table(dbms_xplan.display_cursor('36tvbv2uth9j9',0,'runstats_last')); 

    spool off

    select * from table(dbms_xplan.display_cursor(null,0,'allstats last'));

    select * from table(dbms_xplan.display_cursor(null,null,'advanced'));      

     ---查看上一条sql 的 plan  :

    select * from table(dbms_xplan.display_cursor());      

    -->

    sqlplus / as sysdba

    SET LONG 1000000 SET FEEDBACK OFF

    spool monitor_sql.html

    SELECT DBMS_SQLTUNE.report_sql_monitor(sql_id =>'20wfgydukawbw',type=> 'HTML') AS report FROM dual;  

    spool off    

                       

    ->

     SQL> alter session set events '10046 trace name context forever,level 12';

    Session altered.

    SQL> /

    Session altered.



    SQL> alter session set events '10046 trace name context off';

    Session altered.

    SQL>select * from v$diag_info;

    案例可以参考 http://blog.mchz.com.cn/?p=404

                                 

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  • 原文地址:https://www.cnblogs.com/feiyun8616/p/5872238.html
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