Tanel Poder mon_topsql2.sql

 


-- Copyright 2018 Tanel Poder. All rights reserved. More info at http://tanelpoder.com
-- Licensed under the Apache License, Version 2.0. See LICENSE.txt for terms & conditions.

-- mon_topsql.sql ver2
-- added plan_hash_value support and ordered by descending date
-- script by Tanel Poder ( http://blog.tanelpoder.com )

SET LINES 999 PAGES 5000 TRIMSPOOL ON TRIMOUT ON TAB OFF 

COL pct FOR A10 JUST RIGHT
COL cpu_pct FOR 999.9
COL io_pct FOR 999.9

BREAK ON day SKIP 1

DEF days=7
DEF weekdays="mon,tue,wed,thu,fri,sat,sun"
DEF separator=","

WITH ash AS (
    SELECT 
        day
      , weekday
      , owner
      , object_name
      , procedure_name
      , sql_id
      , sql_plan_hash_value
      , distinct_days
      , total_seconds
      , io_seconds
      , cpu_seconds
      , LPAD(TRIM(TO_CHAR(RATIO_TO_REPORT(total_seconds) OVER (PARTITION BY day) * 100, '999.9'))||'%', 10) pct
      , RATIO_TO_REPORT(total_seconds) OVER (PARTITION BY day) * 100 pct_num
    FROM (
        SELECT
            TO_CHAR(sample_time, 'YYYY-MM-DD') day
          , TO_CHAR(sample_time, 'Dy') weekday
          , COUNT(DISTINCT TO_CHAR(sample_time, 'YYYY-MM-DD')) OVER (PARTITION BY sql_id) distinct_days
          , sql_id
          , sql_plan_hash_value 
          , p.owner
          , p.object_name
          , p.procedure_name
          , SUM(10) total_seconds
          , SUM(CASE WHEN wait_class = 'User I/O' THEN 10 ELSE 0 END) io_seconds
          , SUM(CASE WHEN wait_class IS NULL THEN 10 ELSE 0 END) cpu_seconds
        FROM
            dba_hist_active_sess_history a
          , dba_procedures p
        WHERE
            a.plsql_entry_object_id = p.object_id (+)
        AND a.plsql_entry_subprogram_id = p.subprogram_id (+)
        AND sample_time > SYSDATE - &days
        AND session_type != 'BACKGROUND' -- ignore for now
        AND LOWER(TO_CHAR(sample_time, 'Dy')) IN (
            SELECT
                LOWER(REGEXP_REPLACE(
                        REGEXP_SUBSTR( '&weekdays'||'&separator', '(.*?)&separator', 1, LEVEL )
                        , '&separator$'
                        , ''
                )) TOKEN
            FROM
               DUAL
            CONNECT BY
               REGEXP_INSTR( '&weekdays'||'&separator', '(.*?)&separator', 1, LEVEL ) > 0
        )
        GROUP BY
            sql_id
          , sql_plan_hash_value 
          , p.owner
          , p.object_name
          , p.procedure_name
          , TO_CHAR(sample_time, 'YYYY-MM-DD')
          , TO_CHAR(sample_time, 'Dy')
    )
)
, sqlstat AS (
    SELECT 
        TO_CHAR(begin_interval_time, 'YYYY-MM-DD') day
      , sql_id
      , plan_hash_value
      , SUM(executions_delta) executions
      , SUM(rows_processed_delta) rows_processed
      , SUM(disk_reads_delta) blocks_read
      , SUM(disk_reads_delta)*8/1024 mb_read
      , SUM(buffer_gets_delta) buffer_gets
      , SUM(iowait_delta)/1000000 awr_iowait_seconds
      , SUM(cpu_time_delta)/1000000 awr_cpu_seconds 
      , SUM(elapsed_time_delta)/1000000 awr_elapsed_seconds
    FROM
        dba_hist_snapshot
      NATURAL JOIN
        dba_hist_sqlstat
    WHERE
        begin_interval_time > SYSDATE - &days
    GROUP BY
        TO_CHAR(begin_interval_time, 'YYYY-MM-DD') 
      , sql_id
      , plan_hash_value
)
SELECT 
        day
      , weekday
      , pct
      , owner
      , object_name
      , procedure_name
      , sql_id
      , sql_plan_hash_value plan_hash
      , distinct_days
      , ROUND(total_seconds / 3600,1) total_hours
      , total_seconds
      , executions
      , ROUND(total_seconds / NULLIF(executions,0),2) seconds_per_exec
      , io_pct
      , cpu_pct
      , mb_read
      , ROUND(mb_read / NULLIF(executions,0),2) mb_per_exec
      , buffer_gets
      , ROUND(buffer_gets / NULLIF(executions,0),2) bufget_per_exec
      , CASE WHEN sql_id IS NOT NULL THEN 
            'SELECT * FROM TABLE(DBMS_XPLAN.DISPLAY_AWR('''||sql_id||''','||CASE WHEN sql_plan_hash_value = 0 THEN 'NULL' ELSE TO_CHAR(sql_plan_hash_value) END||', format=>''ADVANCED''));'
        END extract_plan_from_awr
FROM (
    SELECT
        day
      , weekday
      , pct
      , owner
      , object_name
      , procedure_name
      , sql_id
      , sql_plan_hash_value
      , distinct_days
      , total_seconds
      , io_seconds/total_seconds*100 io_pct
      , cpu_seconds/total_seconds*100 cpu_pct
      , (SELECT executions FROM sqlstat s WHERE ash.sql_id = s.sql_id AND ash.sql_plan_hash_value = s.plan_hash_value AND ash.day = s.day) executions
      , (SELECT mb_read FROM sqlstat s WHERE ash.sql_id = s.sql_id AND ash.sql_plan_hash_value = s.plan_hash_value AND ash.day = s.day) mb_read
      , (SELECT buffer_gets FROM sqlstat s WHERE ash.sql_id = s.sql_id AND ash.sql_plan_hash_value = s.plan_hash_value AND ash.day = s.day) buffer_gets
    FROM 
        ash
    WHERE 
        ash.pct_num >= 1
)
ORDER BY
    day DESC
  , total_seconds DESC
/

Comments

Post a Comment

Popular posts from this blog

How To Purge Optimizer Statistics Advisor Old Records From 12.2 Onwards (Doc ID 2660128.1)

  In this Document Goal Solution References APPLIES TO: Oracle Database - Enterprise Edition - Version 12.2.0.1 and later Oracle Cloud Infrastructure - Database Service - Version N/A and later Information in this document applies to any platform. GOAL Goal of this document is to provide the method to purge the old records of Optimizer Statistics Advisor Task namely AUTO_STATS_ADVISOR_TASK that consumes huge SYSAUX space. Huge no.of old records retained in WRI$_ADV_OBJECTS for AUTO_STATS_ADVISOR_TASK or INDIVIDUAL_STATS_ADVISOR_TASK incurs heavy SYSAUX space. AUTO_STATS_ADVISOR_TASK is meant for Automatic Statistics Advisor task while INDIVIDUAL_STATS_ADVISOR_TASK is for Manual Statistics Advisor task.  DBA_ADVISOR_PARAMETERS displays all advisor task parameters and their current values in the database. There is a parameter name called EXECUTION_DAYS_TO_EXPIRE. This parameter is set in no.of days. Executions older than the value(no.of days) set would be purged automaticall...
Read more

Oracle session snapper

-- use dbms_session.sleep instead of dbms_lock on oracle 18c or higher -- last column  is sid  -- scipt_name   stat_to_collect   secods_of_snap  how_many_snap   sessions_to_snap -- @snapper all 100 1 lgdr@* -- @snapper all 100 1 sqlid@* -- @snapper all 190 1 all -- @snapper all 190 1 584 -- @snapper all 30 3 584 -- @snapper all 5 1 869 -- @snapper all 30 1 584 -- @snapper ash 5 1 144 -- @snapper ash=sql_id+event+wait_class+blocking_session+p2+p3 5 1 144 -- @snapper ash 5 1 156 -- @snapper ash 190  1 all -- @snapper ash 5 1 all -- @snapper ash=sid+event+wait_class 5 1 all -- @snapper ash=sid+event+wait_class,ash1=plsql_object_id+plsql_subprogram_id+sql_id 5 1 all -- @snapper ash=sid+event+wait_class,ash1=plsql_object_id+plsql_subprogram_id+sql_id,ash2=program+module+action 5 1 all -- @snapper ash=event+wait_class,stats,gather=ts,tinclude=CPU,sinclude=parse 5 1 all -- @snapper ash=sid+event+wait_class,ash1=sid+sqlid+module,stats,gather...
Read more

Oracle Materialized View In-Depth and Materialized View refresh issues in 19c

   We    had  situation demanding  tuning of  MV  refresh and  options  like  TUNE_MVIEW  and Atomic_Refresh was explored . Hence  Documenting materialized view sample commands  and views in this  blog .     After migration if we are  facing slowness  in  Materialized View refresh , we can explore to re-create  Materialized View   Since  main topic for this blog   was MV issues  in 19c ,  posting that topic   first in line below  We also   have Real-Time Materialized Views  to explore .  To Note :  1) We can  create Mv  on ON PREBUILT TABLE  2) We can create Index on Mv  3) We can  gather stats on mv  just like other table .  4) Mv can be REFRESH_MODE ON COMMIT / REFRESH ON DEMAND. 5) Mv  REFRESH_METHOD can be  Complete / FAST or FORCE . A FORCE attempts a FAST...
Read more