2026-03-12 20:23:15
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vg/ash_sessions.sql
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132
vg/ash_sessions.sql
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/*
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*
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* Author : Vishal Gupta
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* Purpose : Display Session details from ASH
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* Compatibility : 10.1 and above
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* Parameters : 1 - Number of hours (Default 1 hour)
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* 2 - SQLExec Duration (in Seconds) (Default 60 sec)
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* 3 - DB User Name (Default '%')
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* 4 - Program (Default '%')
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* 5 - Service Name (Default '%')
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* 6 - Where Clause
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*
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*
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* Revision History:
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* ===================
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* Date Author Description
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* --------- ------------ -----------------------------------------
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* 20-MAR-15 Vishal Gupta Modified input parameter and renamed script
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* from ash_sid_details.sql to ash_sessions.sql
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* 03-FEB-14 Vishal Gupta Created
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*
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*/
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/************************************
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* INPUT PARAMETERS
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************************************/
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UNDEFINE HOURS
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UNDEFINE DURATION
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UNDEFINE USERNAME
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UNDEFINE PROGRAM
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UNDEFINE SERVICE_NAME
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UNDEFINE WHERECLAUSE
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DEFINE HOURS="&&1"
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DEFINE DURATION="&&2"
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DEFINE USERNAME="&&3"
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DEFINE PROGRAM="&&4"
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DEFINE SERVICE_NAME="&&5"
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DEFINE WHERECLAUSE="&&6"
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COLUMN _HOURS NEW_VALUE HOURS NOPRINT
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COLUMN _DURATION NEW_VALUE DURATION NOPRINT
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COLUMN _USERNAME NEW_VALUE USERNAME NOPRINT
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COLUMN _PROGRAM NEW_VALUE PROGRAM NOPRINT
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COLUMN _SERVICE_NAME NEW_VALUE SERVICE_NAME NOPRINT
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COLUMN _SERVICE_NAME NEW_VALUE SERVICE_NAME NOPRINT
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set term off
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SELECT DECODE(UPPER('&&HOURS'),'','1',UPPER('&&HOURS')) "_HOURS"
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, DECODE(UPPER('&&DURATION'),'','60',UPPER(DURATION)) "_DURATION"
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, DECODE(UPPER('&&USERNAME'),'','%',UPPER('&&USERNAME')) "_USERNAME"
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, DECODE(UPPER('&&PROGRAM'),'','%',UPPER('&&PROGRAM')) "_PROGRAM"
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, DECODE(UPPER('&&SERVICE_NAME'),'','%',UPPER('&&SERVICE_NAME')) "_SERVICE_NAME"
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FROM DUAL;
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set term on
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/***********************************/
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PROMPT ***************************************************
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PROMPT * ASH SQL Details
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PROMPT *
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PROMPT * Input Parameter:
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PROMPT * Number of Hours = "&&HOURS"
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PROMPT * SQLExec Duration = "&&DURATION" seconds
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PROMPT * DB UserName = "&&USERNAME"
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PROMPT * Program = "&&PROGRAM"
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PROMPT * ServiceName = "&&SERVICE_NAME"
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PROMPT * WhereClause = "&&WHERECLAUSE"
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PROMPT ***************************************************
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COLUMN session_id HEADING "SID" FORMAT 99999
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COLUMN inst_id HEADING "I#" FORMAT 99
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COLUMN "session_serial#" HEADING "Serial#" FORMAT 999999
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COLUMN sample_time_min FORMAT a18
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COLUMN sample_time_max FORMAT a18
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COLUMN username HEADING "DBUser" FORMAT a18
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COLUMN service_name HEADING "ServiceName" FORMAT a21
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COLUMN program HEADING "Program" FORMAT a25 TRUNCATE
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COLUMN machine HEADING "Machine" FORMAT a25 TRUNCATE
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COLUMN module HEADING "Module" FORMAT a25 TRUNCATE
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-- Get the SQL Statements from ASH
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SELECT /*+ parallel(ash, 10) */
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--ash.sql_exec_id,
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NVL(ash.qc_session_id,ash.session_id) session_id
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, NVL(ash.qc_instance_id,ash.inst_id) inst_id
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, NVL(ash.qc_session_serial#,ash.session_serial#) session_serial#
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, TO_CHAR(MIN(ash.sample_time),'DD-MON-YY HH24:MI:SS') sample_time_min
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, TO_CHAR(max(ash.sample_time) ,'DD-MON-YY HH24:MI:SS') sample_time_max
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, u.username
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, s.name service_name
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, NVL(ash_parent.program,ash.program) program
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, ash.machine
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, ash.module
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FROM gv$active_session_history ash
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JOIN dba_users u ON u.user_id = ash.user_id
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JOIN dba_services s ON s.name_hash = ash.service_hash
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LEFT OUTER JOIN gv$active_session_history ash_parent
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ON ash_parent.inst_id = ash.qc_instance_id
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AND ash_parent.session_id = ash.qc_session_id
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AND ash_parent.session_serial# = ash.qc_session_serial#
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AND CAST(ash_parent.sample_time as DATE) = ash.sql_exec_start
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WHERE ash.sql_id IS NOT NULL
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-- AND NVL(ash.qc_instance_id,ash.inst_id) LIKE '&&INST_ID'
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-- AND NVL(ash.qc_session_id,ash.session_id) LIKE '&&SID'
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-- AND NVL(ash.qc_session_serial#,ash.session_serial#) LIKE '&&SERIAL'
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AND ash.sample_time > sysdate - (&&HOURS/24)
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AND (ash_parent.sample_time IS NULL or ash_parent.sample_time > sysdate - (&&HOURS/24))
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AND ash.sql_exec_id IS NOT NULL
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AND (cast(ash.sample_time as date) - ash.sql_exec_start)* 24*60*60 > '&&DURATION'
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-- AND ash.user_id = (select user_id from dba_users where username LIKE '&&USERNAME')
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-- AND ash.service_hash = (select name_hash from dba_services where name LIKE '&&SERVICE_NAME')
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AND ash.program LIKE '&&PROGRAM'
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&&WHERECLAUSE
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GROUP BY NVL(ash.qc_session_id,ash.session_id)
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, NVL(ash.qc_instance_id,ash.inst_id)
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, NVL(ash.qc_session_serial#,ash.session_serial#)
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, u.username
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, s.name
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, NVL(ash_parent.program,ash.program)
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, ash.machine
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, ash.module
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ORDER BY MIN(ash.sample_time) ASC
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, max(ash.sample_time) asc
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;
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@@footer
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