2026-03-12 20:23:15
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tpt/ash/dashpeaktop.sql
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119
tpt/ash/dashpeaktop.sql
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-- Copyright 2020 Tanel Poder. All rights reserved. More info at https://tanelpoder.com
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-- Licensed under the Apache License, Version 2.0. See LICENSE.txt for terms & conditions.
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--------------------------------------------------------------------------------
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--
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-- File name: ashpeak.sql
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-- Purpose:
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--
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-- Author: Tanel Poder
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-- Copyright: (c) https://tanelpoder.com
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--
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-- Usage:
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-- @dashpeaktop <grouping_cols> <filters> <fromtime> <totime>
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--
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-- Example:
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--
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-- Other:
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-- This script uses only the in-memory GV$ACTIVE_SESSION_HISTORY, use
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-- @dashpeak.sql for accessiong the DBA_HIST_ACTIVE_SESS_HISTORY archive
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--
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--------------------------------------------------------------------------------
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COL "%Total" FOR A7 JUST RIGHT
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--COL p1 FOR 99999999999999
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--COL p2 FOR 99999999999999
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--COL p3 FOR 99999999999999
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COL p1text FOR A30 word_wrap
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COL p2text FOR A30 word_wrap
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COL p3text FOR A30 word_wrap
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COL p1hex FOR A17
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COL p2hex FOR A17
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COL p3hex FOR A17
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COL dop FOR 99
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COL AAS FOR 9999999999.9
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COL log2_aas_4k FOR A14 HEAD "Log(2,AAS)" JUST LEFT
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COL totalseconds HEAD "Total|Seconds" FOR 99999999
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COL dist_sqlexec_seen HEAD "Distinct|Execs Seen" FOR 999999
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COL event FOR A42 WORD_WRAP
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COL event2 FOR A42 WORD_WRAP
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COL time_model_name FOR A50 WORD_WRAP
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COL program2 FOR A40 TRUNCATE
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COL username FOR A20 wrap
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COL obj FOR A30
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COL objt FOR A50
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COL sql_opname FOR A20
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COL top_level_call_name FOR A30
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COL wait_class FOR A15
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PROMPT
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PROMPT Top AAS peaks within time range between &3 and &4
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WITH bclass AS (SELECT /*+ INLINE */ class, ROWNUM r from v$waitstat)
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SELECT * FROM (
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SELECT
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&1
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, COUNT(*) sessions
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, COUNT(*) * 10 totalseconds
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, ROUND(COUNT(*) * 10 / NULLIF(CAST(MAX(sample_time) AS DATE) - CAST(MIN(sample_time) AS DATE),0) / 86400, 1) AAS
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FROM (
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SELECT
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TRUNC(sample_time, 'DD') dd
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, TRUNC(sample_time, 'HH') hh
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, TRUNC(sample_time, 'MI') mi
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, TO_DATE(SUBSTR(TO_CHAR(sample_time, 'YYYY-MM-DD HH24:MI'), 1, 15)||'0', 'YYYY-MM-DD HH24:MI') mt
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, CAST(sample_time AS DATE) ss
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, NVL(a.event, a.session_state)||
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CASE
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WHEN a.event like 'enq%' AND session_state = 'WAITING'
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THEN ' [mode='||BITAND(p1, POWER(2,14)-1)||']'
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WHEN a.event IN (SELECT name FROM v$event_name WHERE parameter3 = 'class#')
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THEN ' ['||CASE WHEN a.p3 <= (SELECT MAX(r) FROM bclass)
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THEN (SELECT class FROM bclass WHERE r = a.p3)
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ELSE (SELECT DECODE(MOD(BITAND(a.p3,TO_NUMBER('FFFF','XXXX')) - 17,2),0,'undo header',1,'undo data', 'error') FROM dual)
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END ||']'
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ELSE null
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END event2 -- event is NULL in ASH if the session is not waiting (session_state = ON CPU)
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, a.*
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, CASE WHEN a.session_type = 'BACKGROUND' OR REGEXP_LIKE(a.program, '.*\([PJ]\d+\)') THEN
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REGEXP_REPLACE(SUBSTR(a.program,INSTR(a.program,'(')), '\d', 'n')
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ELSE
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'('||REGEXP_REPLACE(REGEXP_REPLACE(a.program, '(.*)@(.*)(\(.*\))', '\1'), '\d', 'n')||')'
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END || ' ' program2
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, CASE WHEN BITAND(time_model, POWER(2, 01)) = POWER(2, 01) THEN 'DBTIME ' END
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||CASE WHEN BITAND(time_model, POWER(2, 02)) = POWER(2, 02) THEN 'BACKGROUND ' END
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||CASE WHEN BITAND(time_model, POWER(2, 03)) = POWER(2, 03) THEN 'CONNECTION_MGMT ' END
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||CASE WHEN BITAND(time_model, POWER(2, 04)) = POWER(2, 04) THEN 'PARSE ' END
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||CASE WHEN BITAND(time_model, POWER(2, 05)) = POWER(2, 05) THEN 'FAILED_PARSE ' END
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||CASE WHEN BITAND(time_model, POWER(2, 06)) = POWER(2, 06) THEN 'NOMEM_PARSE ' END
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||CASE WHEN BITAND(time_model, POWER(2, 07)) = POWER(2, 07) THEN 'HARD_PARSE ' END
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||CASE WHEN BITAND(time_model, POWER(2, 08)) = POWER(2, 08) THEN 'NO_SHARERS_PARSE ' END
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||CASE WHEN BITAND(time_model, POWER(2, 09)) = POWER(2, 09) THEN 'BIND_MISMATCH_PARSE ' END
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||CASE WHEN BITAND(time_model, POWER(2, 10)) = POWER(2, 10) THEN 'SQL_EXECUTION ' END
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||CASE WHEN BITAND(time_model, POWER(2, 11)) = POWER(2, 11) THEN 'PLSQL_EXECUTION ' END
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||CASE WHEN BITAND(time_model, POWER(2, 12)) = POWER(2, 12) THEN 'PLSQL_RPC ' END
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||CASE WHEN BITAND(time_model, POWER(2, 13)) = POWER(2, 13) THEN 'PLSQL_COMPILATION ' END
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||CASE WHEN BITAND(time_model, POWER(2, 14)) = POWER(2, 14) THEN 'JAVA_EXECUTION ' END
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||CASE WHEN BITAND(time_model, POWER(2, 15)) = POWER(2, 15) THEN 'BIND ' END
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||CASE WHEN BITAND(time_model, POWER(2, 16)) = POWER(2, 16) THEN 'CURSOR_CLOSE ' END
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||CASE WHEN BITAND(time_model, POWER(2, 17)) = POWER(2, 17) THEN 'SEQUENCE_LOAD ' END
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||CASE WHEN BITAND(time_model, POWER(2, 18)) = POWER(2, 18) THEN 'INMEMORY_QUERY ' END
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||CASE WHEN BITAND(time_model, POWER(2, 19)) = POWER(2, 19) THEN 'INMEMORY_POPULATE ' END
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||CASE WHEN BITAND(time_model, POWER(2, 20)) = POWER(2, 20) THEN 'INMEMORY_PREPOPULATE ' END
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||CASE WHEN BITAND(time_model, POWER(2, 21)) = POWER(2, 21) THEN 'INMEMORY_REPOPULATE ' END
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||CASE WHEN BITAND(time_model, POWER(2, 22)) = POWER(2, 22) THEN 'INMEMORY_TREPOPULATE ' END
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||CASE WHEN BITAND(time_model, POWER(2, 23)) = POWER(2, 23) THEN 'TABLESPACE_ENCRYPTION ' END time_model_name
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FROM
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dba_hist_active_sess_history a
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WHERE
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&2
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AND sample_time BETWEEN &3 AND &4
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)
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GROUP BY
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&1
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ORDER BY
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totalseconds DESC
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)
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WHERE
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rownum <= 25
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/
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