Snapper.sql

7/30/2019 Snapper.sql

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------------------------------------------------------------------------------------ File name: snapper.sql-- Purpose: An easy to use Oracle session-level performance measurement tool-- which does NOT require any database changes nor creation of any-- database objects!---- This is very useful for ad-hoc performance diagnosis in environments-- with restrictive change management processes, where creating-- even temporary tables and PL/SQL packages is not allowed or would-- take too much time to get approved.---- All processing is done by a few sqlplus commands and an anonymous-- PL/SQL block, all that's needed is SQLPLUS access (and if you want-- to output data to server-side tracefile then execute rights on-- DBMS_SYSTEM). Snapper only queries some V$ views (and in advanced-- mode some X$ fixed tables, but it does not enable any traces nor-- use oradebug.--

-- The output is formatted the way it could be easily post-processed-- by either Unix string manipulation tools or loaded to spreadsheet.---- Snapper v4 works on Oracle 10.1 onwards. If you need Snapper for-- older database versions, then Snapper v3 works on Oracle versions-- starting from Oracle 9.2, but it does not have GV$ view, manual-- snapshot support and the useful averages are limited to wait events-- only

---- Note1: The "ASH" functionality in Snapper just samples V$SESSION view,-- so you do NOT need Diagnostics Pack licenses to use Snapper's-- "ASH" output---- Note2: Snapper just reports you performance metric deltas in a snapsphot-- and does not attempt to solve any performance problems for you.-- You still need to interpret and understand these standard Oracle-- metrics yourself---- Author: Tanel Poder ([email protected])-- Copyright: (c) Tanel Poder - http://blog.tanelpoder.com - All rights reserv

ed.---- Disclaimer: This script is provided "as is", so no warranties or guaranteesare-- made about its correctness, reliability and safety. Use it at your-- own risk!---- License: 1) You may use this script for your (or your businesses) purposes for free


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-- 2) You may modify this script as you like for your own (or yourbusinesses) purpose,-- but you must always leave this script header (the entire comment section), including the-- author, copyright and license sections as the first thing inthe beginning of this file-- 3) You may NOT publish or distribute this script or any variation of it PUBLICLY-- (including, but not limited to uploading it to your public website or ftp server),-- instead just link to its location in blog.tanelpoder.com-- 4) You may distribute this script INTERNALLY in your company, for internal use only,-- for example when building a standard DBA toolset to be deployed to all-- servers or DBA workstations------ Thanks to: Adrian Billington, Jamey Johnston and Marcus Mnnig for bugfixes,-- additions and improvements-------------------------------------------------------------------------------------- The Session Snapper v3.63

-- (c) Tanel Poder ( http://blog.tanelpoder.com )------ +-----=====O=== Welcome to The Session Snapper! (Yes, you are looking at acheap ASCII-- / imitation of a fish and afishing rod.-- | Nevertheless the PL/SQL code below the-- | fish itself should be helpful for quick-- | catching of relevant Oracle performance

-- | information.-- | So I wish you happy... um... snapping?-- | )-- | ......-- | iittii,,....-- iiffffjjjjtttt,,-- ..;;ttffLLLLffLLLLLLffjjtt;;..-- ..ttLLGGGGGGLLffLLLLLLLLLLLLLLffjjii,, ..ii,,-- ffGGffLLLLLLjjttjjjjjjjjffLLLLLLLLLLjjii.. ..iijj;;....-- ffGGLLiittjjttttttiittttttttttffLLLLLLGGffii.. ;;LLLLii;;

;;..-- ffEEGGffiittiittttttttttiiiiiiiittjjjjffLLGGLLii.. iiLLLLLLttiiii,,-- ;;ffDDLLiiiitt,,ttttttttttttiiiiiiiijjjjjjffLLLLffttiiiiffLLGGLLjjtttt;;..-- ..ttttjjiitt,,iiiiiittttttttjjjjttttttttjjjjttttjjttttjjjjffLLDDGGLLttii..-- iittiitttt, ;;iittttttttjjjjjjjjjjttjjjjjjffffffjjjjjjjjjjLLDDGGLLtt;;..-- jjjjttttii:. ..iiiiffLLGGLLLLLLLLffffffLLLLLLLLLLLLLLLLffffffLLLLLLfftt,,-- iittttii,,;;,,ttiiiiLLLLffffffjjffffLLLLLLLLffLLffjjttttttttttjjjjffjjii..-- ,,iiiiiiiiiittttttiiiiiiiiiijjffffLLLLLLLLffLLffttttttii;;;;iiiitttttttt;;


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..-- ..iittttttffffttttiiiiiiiiiittttffjjjjffffffffttiittii:: ....,,;;iittii;;-- ..;;iittttttttttttttttiiiiiittttttttttjjjjjjtttttt;; ..;;ii;;..-- ..;;;;iittttttjjttiittttttttttttttjjttttttttii.. ....-- ....;;;;ttjjttttiiiiii;;;;;;iittttiiii..-- ..;;ttttii;;.... ..;;;;....-- ..iiii;;..-- ..;;,,-- ....------ Usage:---- snapper.sql [,out][,trace][,pagesize=X][,gather=[s][t][w][l][e][b][a]]> ---- ash - sample session activity ASH style, waits and SQL_IDs fromv$session and-- print a TOP SQL/wait report from these samples (this is the default from-- Snapper 3.0). The columns chosen for TOP calculation are

defined in CONFIG-- section below.---- ash=sql_id+event+wait_class-- - the above example illustrates that you can also specify the v$session-- columns for TOP report yourself. The above example will show a TOP-- activity report grouped by SQL_ID + EVENT + WAIT_CLASS-- Note that the columns are separated by a "+" sign (as comma is a snapper-- parameter separator, not ASH column separator)--

-- ash1-- ash2-- ash3 - in addition to "ash" report you can have 3 more reportedduring the same-- snapper sampling snapshot. Just include ash1=col1+col2,ash2=col3+col4,...-- parameters if you want multiple TOP reports per Snapper snapshot---- stats - sample v$sesstat,v$sess_time_model,v$session_event performance counters-- and report how much these stats increased (deltas) duringSnapper run

-- all - report both ASH and stats sections---- out - use dbms_output.put_line() for output. output will be seen only when-- Snapper run completes due to dbms_output limitations. This is the default.-- trace - write output to server process tracefile-- (you must have execute permission on sys.dbms_system.ksdwrt() for that,-- you can use both out and trace parameters together if yo


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u like )---- pagesize - display header lines after X snapshots. if pagesize=0 don't display-- any headers. pagesize=-1 will display a terse header onlyonce---- gather - if omitted, gathers s,t,w statistics (see below)-- - if specified, then gather following:---- Session-level stats:-- s - Session Statistics from v$sesstat-- t - Session Time model info from v$sess_time_model-- w - Session Wait statistics from v$session_event andv$session_wait---- Instance-level stats:-- l - instance Latch get statistics ( gets + immediate_gets )-- e - instance Enqueue lock get statistics-- b - buffer get Where statistics -- useful in versions up to 10.2.x-- a - All above--

-- sinclude - if specified, then show only V$SESSTAT stats which matchthe-- LIKE pattern of sinclude (REGEXP_LIKE in 10g+)-- linclude - if specified, then show only V$LATCH latch stats which match the-- LIKE pattern of linclude (REGEXP_LIKE in 10g+)-- tinclude - if specified, then show only V$SESS_TIME_MODEL stats which match the-- LIKE pattern of tinclude (REGEXP_LIKE in 10g+)-- winclude - if specified, then show only V$SESSION_EVENT wait stats which match the-- LIKE pattern of winclude (REGEXP_LIKE in 10g+)--

-- you can combine above parameters in any order, separate them by commas-- !!!don't use spaces as otherwise they are treated as next parametersby sqlplus !!!-- !!!if you want to use spaces, enclose the whole sqlplus parameter indoublequotes !!!---- - the number of seconds between taking snapshots-- - the number of snapshots to take ( maximum value is power(2,31)-1 )---- can be either one sessionid, multiple sessionids separated by

-- commas or a SQL statement which returns a list of SIDs (if you need spaces-- in that parameter text, enclose it in double quotes).---- if you want to snap ALL sids, use "all" as value for-- parameter---- alternatively you can used "select sid from v$session" as value for -- parameter to capture all SIDs. you can write any query (with multiple an


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d/or)-- conditions to specify complex rules for capturing only the SIDs you want---- starting from version 3.0 there are further session_id selection optionsavailable in-- instead of sid you can write such expressions for snapper's parameter:---- sid=123 -- take sid 123 only (the same as just writing 123)-- user=tanel -- take all sessions where username is 'tanel' (case insensitive)-- -- this is the same as writing following subquery for the-- -- parameter:-- select sid from v$session where lower(username) like lower('tanel')---- user=tanel% -- take all sessions where username begins with 'tanel%'(case insensitive)-- -- the = means actually LIKE in SQL terms in this script---- spid=1234 -- all these 3 parameters do the same thing:-- ospid=1234 -- they look up the sessions(s) where the processes OS PID=1234

-- pid=1234 -- this is useful for quickly looking up what some OS process is doing-- -- if it consumes too much of some resource-- qc=123-- qcsid=123 -- show query coordinator and all PX slave sessions---- program=sqlplus% -- the following examples filter by corresponding v$session coulmns-- machine=linux01 -- machine-- osuser=oracle -- os username-- module=HR -- module-- "action=Find Order" -- note the quotes because there is a space inside the parameter

-- -- value-- client_id=tanelpoder -- show only sessions where client_identifier isset to tanelpoder-- -- this is very useful in cases with (properly instrumented)-- -- connection pools------ Note that if you want to change some "advanced" snapper configuration parameters-- or default values then search for CONFIG in this file to see configurable-- variable section

------ Examples:-- NB! Read the online examples, these are more detailed and list script output too!---- http://tech.e2sn.com/oracle-scripts-and-tools/session-snapper---- @snapper ash,stats 1 1 515-- (Output one 1-second snapshot of session 515 using dbms_output and exit


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-- Wait, v$sesstat and v$sess_time_model statistics are reported by default-- Starting from V3 the ASH style session activity report is shown as well)---- @snapper stats,gather=w 1 1 515-- (Output one 1-second snapshot of session 515 using dbms_output and exit-- only Wait event statistics are reported, no ASH)---- @snapper ash,gather=st 1 1 515-- (Output one 1-second snapshot of session 515 using dbms_output and exit-- only v$sesstat and v$sess_Time_model statistics are gathered + ASH)---- @snapper trace,ash,gather=stw,pagesize=0 10 90 117,210,313-- (Write 90 10-second snapshots into tracefile for session IDs 117,210,313-- all statistics are reported, do not print any headers)---- @snapper trace,ash 900 999999999 "select sid from v$session"-- (Take a snapshot of ALL sessions every 15 minutes and write the output to trace,-- loop (almost) forever )---- @snapper out,trace 300 12 "select sid from v$session where username='APPS'"

-- (Take 12 5-minute snapshots of all sessions belonging to APPS user, write-- output to both dbms_output and tracefile)---- Notes:---- Snapper does not currently detect if a session with given SID has-- ended and been recreated between snapshots, thus it may report bogus-- statistics for such sessions. The check and warning for that will be-- implemented in a future version.----------------------------------------------------------------------------------

set termout off tab off verify off linesize 999 trimspool on trimout on null ""

-- Get parametersdefine snapper_options="&1"define snapper_sleep="&2"define snapper_count="&3"define snapper_sid="&4"

-- The following code is required for making this script "dynamic" as due to-- different Oracle versions, script parameters or granted privileges some-- statements might not compile if not adjusted properly.

define _IF_ORA9=""define _IF_ORA9206_OR_LOWER=""define _IF_ORA9207_OR_HIGHER=""define _IF_ORA10_OR_HIGHER=""define _IF_ORA10_OR_HIGHER="--"define _IF_ORA11_OR_HIGHER="--"define _IF_LOWER_THAN_ORA11="--"define _IF_DBMS_SYSTEM_ACCESSIBLE="/* dbms_system is not accessible"/*dummy*/ -- it's here to avoid vim syntax highlighter from going crazydefine _IF_X_ACCESSIBLE="--"


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-- plsql_object_id columns available in v$session (from 10.2.0.3)define _YES_PLSQL_OBJ_ID="--"define _NO_PLSQL_OBJ_ID=""-- blocking_instance available in v$session (from 10.2)define _YES_BLK_INST="--"define _NO_BLK_INST=""

-- set the noprint's value to "noprint" if you don't want these temporary variables to show up in a sqlplus spool fileDEF noprint=""col snapper_ora9 &noprint new_value _IF_ORA9col snapper_ora9206lower &noprint new_value _IF_ORA9206_OR_LOWERcol snapper_ora9207higher &noprint new_value _IF_ORA9207_OR_HIGHERcol snapper_ora10higher &noprint new_value _IF_ORA10_OR_HIGHERcol snapper_ora11higher &noprint new_value _IF_ORA11_OR_HIGHERcol snapper_ora11lower &noprint new_value _IF_LOWER_THAN_ORA11col dbms_system_accessible &noprint new_value _IF_DBMS_SYSTEM_ACCESSIBLEcol x_accessible &noprint new_value _IF_X_ACCESSIBLEcol no_plsql_obj_id &noprint new_value _NO_PLSQL_OBJ_IDcol yes_plsql_obj_id &noprint new_value _YES_PLSQL_OBJ_IDcol no_blk_inst &noprint new_value _NO_BLK_INSTcol yes_blk_inst &noprint new_value _YES_BLK_INST

col snapper_sid &noprint new_value snapper_sid-- this block determines whether dbms_system.ksdwrt is accessible to us-- dbms_describe is required as all_procedures/all_objects may show this object-- even if its not executable by us (thanks to o7_dictionary_accessibility=false)

var v varchar2(100)var x varchar2(10)

declare

o sys.dbms_describe.number_table;

p sys.dbms_describe.number_table;l sys.dbms_describe.number_table;a sys.dbms_describe.varchar2_table;dty sys.dbms_describe.number_table;def sys.dbms_describe.number_table;inout sys.dbms_describe.number_table;len sys.dbms_describe.number_table;prec sys.dbms_describe.number_table;scal sys.dbms_describe.number_table;rad sys.dbms_describe.number_table;spa sys.dbms_describe.number_table;

tmp number;

begin

beginexecute immediate 'select count(*) from x$kcbwh where rownum = 1' into t

mp;:x:= ' '; -- x$ tables are accessible, so dont comment any lines out

exceptionwhen others then null;

end;


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sys.dbms_describe.describe_procedure('DBMS_SYSTEM.KSDWRT', null, null,o, p, l, a, dty, def, inout, len, prec, scal, rad, spa

);

-- we never get to following statement if dbms_system is not accessible-- as sys.dbms_describe will raise an exception:v:= '-- dbms_system is accessible';

exceptionwhen others then null;

end;/

-- this is here for a reason-- im extracting the first word of the snapper_sid (if its a complex expression,not just a single SID)-- by relying on how DEF and & assignment treat spaces in stringsdef ssid_begin=&snapper_sid

select snapper_sid from (select

case

when trim(lower('&ssid_begin')) like 'sid=%' then trim(replace('&ssid_begin','sid=',''))when trim(lower('&ssid_begin')) like 'user=%' then 'select sid from

v$session where lower(username) like '''||lower(trim(replace('&ssid_begin','user=','')))||''''

when trim(lower('&ssid_begin')) like 'username=%' then 'select sid from v$session where lower(username) like '''||lower(trim(replace('&ssid_begin','username=','')))||''''

when trim(lower('&ssid_begin')) like 'machine=%' then 'select sid from v$session where lower(machine) like '''||lower(trim(replace('&ssid_begin','machine=','')))||''''

when trim(lower('&ssid_begin')) like 'program=%' then 'select sid from v$session where lower(program) like '''||lower(trim(replace('&ssid_begin','pr

ogram=','')))||''''when trim(lower('&ssid_begin')) like 'service=%' then 'select sid from v$session where lower(service_name) like '''||lower(trim(replace('&ssid_begin','service=','')))||''''

when trim(lower('&ssid_begin')) like 'module=%' then 'select sid from v$session where lower(module) like '''||lower(trim(replace('&ssid_begin','module=','')))||''''

when trim(lower('&ssid_begin')) like 'action=%' then 'select sid from v$session where lower(action) like '''||lower(trim(replace('&ssid_begin','action=','')))||''''

when trim(lower('&ssid_begin')) like 'osuser=%' then 'select sid from v$session where lower(osuser) like '''||lower(trim(replace('&ssid_begin','osuser=','')))||''''

when trim(lower('&ssid_begin')) like 'client_id=%' then 'select sidfrom v$session where lower(client_identifier) like '''||lower(trim(replace('&ssid_begin','client_id=','')))||''''

when trim(lower('&ssid_begin')) like 'spid=%' then 'select sid fromv$session where paddr in (select addr from v$process where spid in ('||lower(trim(replace('&ssid_begin','spid=','')))||'))'

when trim(lower('&ssid_begin')) like 'ospid=%' then 'select sid fromv$session where paddr in (select addr from v$process where spid in ('||lower(trim(replace('&ssid_begin','ospid=','')))||'))'

when trim(lower('&ssid_begin')) like 'pid=%' then 'select sid from v


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$session where paddr in (select addr from v$process where spid in ('||lower(trim(replace('&ssid_begin','pid=','')))||'))'

when trim(lower('&ssid_begin')) like 'qcsid=%' then 'select sid fromv$px_session where qcsid in ('||lower(trim(replace('&ssid_begin','qcsid=','')))||')'

when trim(lower('&ssid_begin')) like 'qc=%' then 'select sid from v$px_session where qcsid in ('||lower(trim(replace('&ssid_begin','qc=','')))||')'

when trim(lower('&ssid_begin')) = 'all' then 'select sid from v$session'

when trim(lower('&ssid_begin')) = 'bg' then 'select sid from v$session where type=''BACKGROUND'''

when trim(lower('&ssid_begin')) = 'fg' then 'select sid from v$session where type=''USER'''

when trim(lower('&ssid_begin')) = 'lgwr' then 'select sid from v$session where program like ''%(LGWR)%'''

when trim(lower('&ssid_begin')) = 'dbwr' then 'select sid from v$session where program like ''%(DBW%)%'''

when trim(lower('&ssid_begin')) like 'select%' then nullwhen trim(lower('&ssid_begin')) like 'with%' then nullelse null

end snapper_sid -- put the result back to snapper_sid sqlplus value (ifits not null)

fromdual

)wheresnapper_sid is not null -- snapper_sid sqlplus variable value will not be re

placed if this query doesnt return any rows/

-- this query populates some sqlplus variables required for dynamic compilationused below

with mod_banner as (select

replace(banner,'9.','09.') banner

fromv$versionwhere rownum = 1

)select

decode(substr(banner, instr(banner, 'Release ')+8,2), '09', '--', '') snapper_ora10lower,

decode(substr(banner, instr(banner, 'Release ')+8,2), '09', '', '--') snapper_ora9,

decode(substr(banner, instr(banner, 'Release ')+8,1), '1', '', '--') snapper_ora10higher,

CASE WHEN substr(banner, instr(banner, 'Release ')+8,2) >= '11' THEN '' ELSE'--' END snapper_ora11higher,

CASE WHEN substr(banner, instr(banner, 'Release ')+8,2) < '11' THEN '' ELSE'--' END snapper_ora11lower,nvl(:v, '/* dbms_system is not accessible') dbms_system_accessible,nvl(:x, '--') x_accessible,case when substr( banner, instr(banner, 'Release ')+8, instr(substr(banner,i

nstr(banner,'Release ')+8),' ') ) >= '10.2' then '' else '--' end yes_blk_inst,

case when substr( banner, instr(banner, 'Release ')+8, instr(substr(banner,instr(banner,'Release ')+8),' ') ) >= '10.2' then '--' else '' end no_blk_inst,


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case when substr( banner, instr(banner, 'Release ')+8, instr(substr(banner,instr(banner,'Release ')+8),' ') ) >= '10.2.0.3' then '' else '--' end yes_plsql_obj_id,

case when substr( banner, instr(banner, 'Release ')+8, instr(substr(banner,instr(banner,'Release ')+8),' ') ) >= '10.2.0.3' then '--' else '' end no_plsql_obj_id,

case when substr( banner, instr(banner, 'Release ')+8, instr(substr(banner,instr(banner,'Release ')+8),' ') ) < '09.2.0.7' then '' else '--' end snapper_ora9206lower,

case when substr( banner, instr(banner, 'Release ')+8, instr(substr(banner,instr(banner,'Release ')+8),' ') ) >= '09.2.0.7' then '' else '--' end snapper_ora9207higherfrom

mod_banner/

set termout on serveroutput on size 1000000 format wrapped

prompt Sampling SID &4 with interval &snapper_sleep seconds, taking &snapper_count snapshots...

-- main()-- let the Snapping start!!!declare

-- Snapper start-- forward declarationsprocedure output(p_txt in varchar2);procedure fout;

function tptformat( p_num in number,p_stype in varchar2 default 'STAT',p_precision in number default 2,p_base in number default 10,p_grouplen in number default 3

)return varchar2;

function getopt( p_parvalues in varchar2,

p_extract in varchar2,p_delim in varchar2 default ',')return varchar2;

-- type, constant, variable declarations

-- trick for holding 32bit UNSIGNED event and stat_ids in 32bit SIGNED PLS_INTEGER

pls_adjust constant number(10,0) := power(2,31) - 1;

type srec is record (stype varchar2(4), sid number, statistic# number, valuenumber, event_count number );

type stab is table of srec index by pls_integer;s1 stab;s2 stab;

type snrec is record (stype varchar2(4), statistic# number, name varchar2(100));

type sntab is table of snrec index by pls_integer;sn_tmp sntab;sn sntab;


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&_IF_ORA10_OR_HIGHER type sestab is table of v$session%rowtype index by pls_integer;--For ORA9 we can't just declare this with a table type, since we need to join V$SESSION with V$SESSION_WAIT

&_IF_ORA9 TYPE sestab_rec IS RECORD (&_IF_ORA9 SADDR RAW(8),&_IF_ORA9 SID NUMBER,&_IF_ORA9 SERIAL# NUMBER,&_IF_ORA9 AUDSID NUMBER,&_IF_ORA9 PADDR RAW(8),&_IF_ORA9 USER# NUMBER,&_IF_ORA9 USERNAME VARCHAR2(30),&_IF_ORA9 COMMAND NUMBER,&_IF_ORA9 OWNERID NUMBER,&_IF_ORA9 TADDR VARCHAR2(16),&_IF_ORA9 LOCKWAIT VARCHAR2(16),&_IF_ORA9 STATUS VARCHAR2(8),&_IF_ORA9 SERVER VARCHAR2(9),&_IF_ORA9 SCHEMA# NUMBER,&_IF_ORA9 SCHEMANAME VARCHAR2(30),&_IF_ORA9 OSUSER VARCHAR2(30),&_IF_ORA9 PROCESS VARCHAR2(12),

&_IF_ORA9 MACHINE VARCHAR2(64),&_IF_ORA9 TERMINAL VARCHAR2(30),&_IF_ORA9 PROGRAM VARCHAR2(64),&_IF_ORA9 TYPE VARCHAR2(10),&_IF_ORA9 SQL_ADDRESS RAW(8),&_IF_ORA9 SQL_HASH_VALUE NUMBER,&_IF_ORA9 PREV_SQL_ADDR RAW(8),&_IF_ORA9 PREV_HASH_VALUE NUMBER,&_IF_ORA9 MODULE VARCHAR2(48),&_IF_ORA9 MODULE_HASH NUMBER,&_IF_ORA9 ACTION VARCHAR2(32),&_IF_ORA9 ACTION_HASH NUMBER,&_IF_ORA9 CLIENT_INFO VARCHAR2(64),

&_IF_ORA9 FIXED_TABLE_SEQUENCE NUMBER,&_IF_ORA9 ROW_WAIT_OBJ# NUMBER,&_IF_ORA9 ROW_WAIT_FILE# NUMBER,&_IF_ORA9 ROW_WAIT_BLOCK# NUMBER,&_IF_ORA9 ROW_WAIT_ROW# NUMBER,&_IF_ORA9 LOGON_TIME DATE,&_IF_ORA9 LAST_CALL_ET NUMBER,&_IF_ORA9 PDML_ENABLED VARCHAR2(3),&_IF_ORA9 FAILOVER_TYPE VARCHAR2(13),&_IF_ORA9 FAILOVER_METHOD VARCHAR2(10),&_IF_ORA9 FAILED_OVER VARCHAR2(3),&_IF_ORA9 RESOURCE_CONSUMER_GROUP VARCHAR2(32),&_IF_ORA9 PDML_STATUS VARCHAR2(8),

&_IF_ORA9 PDDL_STATUS VARCHAR2(8),&_IF_ORA9 PQ_STATUS VARCHAR2(8),&_IF_ORA9 CURRENT_QUEUE_DURATION NUMBER,&_IF_ORA9 CLIENT_IDENTIFIER VARCHAR2(64),&_IF_ORA9 SID2 NUMBER,&_IF_ORA9 SEQ# NUMBER,&_IF_ORA9 EVENT VARCHAR2(64),&_IF_ORA9 P1TEXT VARCHAR2(64),&_IF_ORA9 P1 NUMBER,&_IF_ORA9 P1RAW RAW(8),


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&_IF_ORA9 P2TEXT VARCHAR2(64),&_IF_ORA9 P2 NUMBER,&_IF_ORA9 P2RAW RAW(8),&_IF_ORA9 P3TEXT VARCHAR2(64),&_IF_ORA9 P3 NUMBER,&_IF_ORA9 P3RAW RAW(8),&_IF_ORA9 WAIT_TIME NUMBER,&_IF_ORA9 SECONDS_IN_WAIT NUMBER,&_IF_ORA9 STATE VARCHAR2(19)&_IF_ORA9 );

&_IF_ORA9 type sestab is table of sestab_rec index by pls_integer;

g_sessions sestab;g_empty_sessions sestab;

type hc_tab is table of number index by pls_integer; -- index is sql hash value

type ses_hash_tab is table of hc_tab index by pls_integer; -- index is SID

g_ses_hash_tab ses_hash_tab;g_empty_ses_hash_tab ses_hash_tab;

-- dbms_debug_vc2coll is a built-in collection present in every oracle dbg_ash sys.dbms_debug_vc2coll := new sys.dbms_debug_vc2coll();g_empty_ash sys.dbms_debug_vc2coll := new sys.dbms_debug_vc2coll();

g_ash_samples_taken number := 0;

g_count_statname number;g_count_eventname number;

g_mysid number;

i number;a number;

b number;

c number;delta number;evcnt number;changed_values number;pagesize number:=99999999999999;missing_values_s1 number := 0;missing_values_s2 number := 0;disappeared_sid number := 0;lv_curr_sid number := 0; -- used for determining whether to print an e

mpty line between session statsd1 date;

d2 date;ash_date1 date;ash_date2 date;lv_gather varchar2(1000);gv_header_string varchar2(1000);lv_data_string varchar2(1000);

lv_ash varchar2(1000);lv_stats varchar2(1000);


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gather_stats number := 0;gather_ash number := 0;

-- CONFIGURABLE STUFF --

-- this sets what are the default ash sample TOP reporting group by columns

&_IF_ORA10_OR_HIGHER g_ash_columns varchar2(1000) := 'sql_id + sql_child_number + event + wait_class';&_IF_ORA10_OR_HIGHER g_ash_columns1 varchar2(1000) := 'event + wait_class';&_IF_ORA10_OR_HIGHER g_ash_columns2 varchar2(1000) := 'sid + sql_id';&_IF_ORA10_OR_HIGHER g_ash_columns3 varchar2(1000) := 'plsql_object_id+ plsql_subprogram_id + sql_id';

&_IF_ORA9 g_ash_columns varchar2(1000) := 'sql_hash_value+ event';&_IF_ORA9 g_ash_columns1 varchar2(1000) := 'event';&_IF_ORA9 g_ash_columns2 varchar2(1000) := 'sid + sql_hash_value';&_IF_ORA9 g_ash_columns3 varchar2(1000) := 'plsql_object_id

+ plsql_subprogram_id + sql_hash_value';-- output column configurationoutput_header number := 0; -- 1=true 0=falseoutput_username number := 1; -- v$session.usernameoutput_sid number := 1; -- sidoutput_time number := 0; -- time of snapshot s

tartoutput_seconds number := 0; -- seconds in snapsho

t (shown in footer of each snapshot too)output_stype number := 1; -- statistic type (WA

IT,STAT,TIME,ENQG,LATG,...)output_sname number := 1; -- statistic name

output_delta number := 1; -- raw deltaoutput_delta_s number := 0; -- raw delta normalized to per second

output_hdelta number := 0; -- human readable delta

output_hdelta_s number := 1; -- human readable delta normalized to per second

output_percent number := 1; -- percent of total time/samples

output_eventcnt number := 1; -- wait event countoutput_eventcnt_s number := 1; -- wait event countoutput_eventavg number := 1; -- average wait durat

ion

&_IF_ORA9206_OR_LOWER output_pcthist number := 0; -- percent of total visual bar (histogram) -- 9.2.0.6 or lower - does not work - jbj2&_IF_ORA9207_OR_HIGHER output_pcthist number := 1; -- percent of total visual bar (histogram) -- Histograms seem to work for me on 9.2.0.7 + - JBJ2)

-- column widths in ASH report outputw_sid number := 6;w_username number := 20;w_machine number := 20;w_terminal number := 20;


14/49

w_program number := 25;w_event number := 35;w_wait_class number := 15;w_state number := 8;w_p1 number := 20;w_p2 number := 20;w_p3 number := 20;w_row_wait_obj# number := 10;w_row_wait_file# number := 6;w_row_wait_block# number := 10;w_row_wait_row# number := 6;w_blocking_session_status number := 15;w_blocking_instance number := 12;w_blocking_session number := 12;w_sql_hash_value number := 12;w_sql_id number := 15;w_sql_child_number number := 9;w_plsql_entry_object_id number := 10;w_plsql_entry_subprogram_id number := 10;w_plsql_object_id number := 10;w_plsql_subprogram_id number := 10;w_module number := 25;w_action number := 25;w_client_identifier number := 25;

w_service_name number := 25;w_activity_pct number := 7;

-- END CONFIGURABLE STUFF --

-- constants for ash collection extraction from the vc2 collections_sid constant number := 1 ;s_username constant number := 2 ;s_machine constant number := 3 ;s_terminal constant number := 4 ;s_program constant number := 5 ;s_event constant number := 6 ;

s_wait_class constant number := 7 ;s_state constant number := 8 ;s_p1 constant number := 9 ;s_p2 constant number := 10 ;s_p3 constant number := 11 ;s_row_wait_obj# constant number := 12 ;s_row_wait_file# constant number := 13 ;s_row_wait_block# constant number := 14 ;s_row_wait_row# constant number := 15 ;s_blocking_session_status constant number := 16 ;s_blocking_instance constant number := 17 ;s_blocking_session constant number := 18 ;s_sql_hash_value constant number := 19 ;

s_sql_id constant number := 20 ;s_sql_child_number constant number := 21 ;s_plsql_entry_object_id constant number := 22 ;s_plsql_entry_subprogram_id constant number := 23 ;s_plsql_object_id constant number := 24 ;s_plsql_subprogram_id constant number := 25 ;s_module constant number := 26 ;s_action constant number := 27 ;s_client_identifier constant number := 28 ;s_service_name constant number := 29 ;


15/49

-- constants for ash collection reporting, which columns to show in reportc_sid constant number := power(2, s_sid

);c_username constant number := power(2, s_username

);c_machine constant number := power(2, s_machine

);c_terminal constant number := power(2, s_terminal

);c_program constant number := power(2, s_program

);c_event constant number := power(2, s_event

);c_wait_class constant number := power(2, s_wait_class

);c_state constant number := power(2, s_state

);c_p1 constant number := power(2, s_p1



);

c_row_wait_obj# constant number := power(2, s_row_wait_obj#);c_row_wait_file# constant number := power(2, s_row_wait_file#

);c_row_wait_block# constant number := power(2, s_row_wait_block#

);c_row_wait_row# constant number := power(2, s_row_wait_row#

);c_blocking_session_status constant number := power(2, s_blocking_sessio

n_status );c_blocking_instance constant number := power(2, s_blocking_instan

ce );c_blocking_session constant number := power(2, s_blocking_sessio

n );c_sql_hash_value constant number := power(2, s_sql_hash_value);

c_sql_id constant number := power(2, s_sql_id);

c_sql_child_number constant number := power(2, s_sql_child_number );

c_plsql_entry_object_id constant number := power(2, s_plsql_entry_object_id );

c_plsql_entry_subprogram_id constant number := power(2, s_plsql_entry_subprogram_id);

c_plsql_object_id constant number := power(2, s_plsql_object_id);

c_plsql_subprogram_id constant number := power(2, s_plsql_subprogram_id );c_module constant number := power(2, s_module

);c_action constant number := power(2, s_action

);c_client_identifier constant number := power(2, s_client_identifi

er );c_service_name constant number := power(2, s_service_name

);


16/49

-- bitfield specifying which columns to group by in sampled session activity(ASH)

g_ash_grouping number := 63; -- test

/*----------------------------------------------------- proc for outputting data to trace or dbms_output---------------------------------------------------*/procedure output(p_txt in varchar2) isbegin

if (getopt('&snapper_options', 'out') is not null)or(getopt('&snapper_options', 'out') is null and getopt('&snapper_optio

ns', 'trace') is null)then

dbms_output.put_line(p_txt);end if;

-- The block below is a sqlplus trick for conditionally commenting out PL/SQL code

&_IF_DBMS_SYSTEM_ACCESSIBLE

if getopt('&snapper_options', 'trace') is not null thensys.dbms_system.ksdwrt(1, p_txt);sys.dbms_system.ksdfls;

end if;-- */

end; -- output

/*----------------------------------------------------- proc for outputting data, utilizing global vars---------------------------------------------------*/procedure fout is

l_output_username VARCHAR2(100);begin

--if s2(b).stype='WAIT' then output( 'DEBUG WAIT ' || sn(s2(b).statistic#).name || ' ' || delta ); end if;--output( 'DEBUG, Entering fout(), b='||to_char(b)||' sn(s2(b).statistic#=

'||s2(b).statistic# );--output( 'DEBUG, In fout(), a='||to_char(a)||' b='||to_char(b)||' s1.coun

t='||s1.count||' s2.count='||s2.count||' s2.count='||s2.count);

if output_username = 1 thenbegin

l_output_username := nvl( g_sessions(s2(b).sid).username, substr(g_sessions(s2(b).sid).program, instr(g_sessions(s2(b).sid).program,'(')) );

exceptionwhen no_data_found then l_output_username := 'error';

when others then raise;end;end if;output( CASE WHEN output_header = 1 THEN 'SID= ' END

|| CASE WHEN output_sid = 1 THEN to_char(s2(b).sid,'999999')||', ' END

|| CASE WHEN output_username = 1 THEN rpad(CASE s2(b).sid WHEN -1 THEN ' ' ELSE NVL(l_output_username, ' ') END, 10)||', ' END

|| CASE WHEN output_time = 1 THEN to_char(d1, 'YYYYMMDD HH24:MI:SS')||', ' END


17/49

|| CASE WHEN output_seconds = 1 THEN to_char(case (d2-d1) when0 then &snapper_sleep else (d2-d1) * 86400 end, '9999999')||', ' END

|| CASE WHEN output_stype = 1 THEN s2(b).stype||', ' END|| CASE WHEN output_sname = 1 THEN rpad(sn(s2(b).statistic#).

name, 58, ' ')||', ' END|| CASE WHEN output_delta = 1 THEN to_char(delta, '9999999999

99')||', ' END|| CASE WHEN output_delta_s = 1 THEN to_char(delta/(case (d2-d1

) when 0 then &snapper_sleep else (d2-d1) * 86400 end),'999999999')||', ' END|| CASE WHEN output_hdelta = 1 THEN lpad(tptformat(delta, s2(b

).stype), 10, ' ')||', ' END|| CASE WHEN output_hdelta_s = 1 THEN lpad(tptformat(delta/(case

(d2-d1) when 0 then &snapper_sleep else (d2-d1)* 86400 end ), s2(b).stype), 10,' ')||', ' END

|| CASE WHEN output_percent = 1 THEN CASE WHEN s2(b).stype IN ('TIME','WAIT') THEN to_char(delta/CASE (d2-d1) WHEN 0 THEN &snapper_sleep ELSE (d2-d1) * 86400 END / 10000, '9999.9')||'%' ELSE ' ' END END||', '

|| CASE WHEN output_pcthist = 1 THEN CASE WHEN s2(b).stype IN ('TIME','WAIT') THEN rpad(rpad('[', ceil(round(delta/CASE (d2-d1) WHEN 0 THEN &snapper_sleep ELSE (d2-d1) * 86400 END / 100000,1))+1, CASE WHEN s2(b).stype IN ('WAIT') THEN 'W' WHEN sn(s2(b).statistic#).name = 'DB CPU' THEN '@' ELSE '#' END),11,' ')||']' ELSE ' ' END END||', '

|| CASE WHEN output_eventcnt = 1 THEN CASE WHEN s2(b).stype IN ('WAIT') THEN to_char(evcnt, '99999999') ELSE ' ' END END||', '

|| CASE WHEN output_eventcnt_s = 1 THEN CASE WHEN s2(b).stype IN ('WAIT') THEN lpad(tptformat((evcnt / case (d2-d1) when 0 then &snapper_sleep else (d2-d1)* 86400 end ), 'STAT' ), 10, ' ') ELSE ' ' END END||', '

|| CASE WHEN output_eventavg = 1 THEN CASE WHEN s2(b).stype IN ('WAIT') THEN lpad(tptformat(delta / CASE WHEN evcnt = 0 THEN 1 ELSE evcnt END, s2(b).stype), 10, ' ') ELSE ' ' END END

);

end;

/*----------------------------------------------------- function for converting large numbers to human-readable format---------------------------------------------------*/

function tptformat( p_num in number,p_stype in varchar2 default 'STAT',p_precision in number default 2,p_base in number default 10, -- for KiB/MiB formattin

g usep_grouplen in number default 3 -- p_base=2 and p_groupl

en=10)return varchar2

isbegin

if p_num = 0 then return '0'; end if;

if p_stype in ('WAIT','TIME') then

returnround(

p_num / power( p_base , trunc(log(p_base,abs(p_num)))-trunc(mod(log(p_base,abs(p_num)),p_grouplen)) ), p_precision

)|| case trunc(log(p_base,abs(p_num)))-trunc(mod(log(p_base,abs(p

_num)),p_grouplen))when 0 then 'us'


18/49

when 1 then 'us'when p_grouplen*1 then 'ms'when p_grouplen*2 then 's'when p_grouplen*3 then 'ks'when p_grouplen*4 then 'Ms'else '*'||p_base||'^'||to_char( trunc(log(p_base,abs(p_nu

m)))-trunc(mod(log(p_base,abs(p_num)),p_grouplen)) )||' us'end;

else

returnround(

p_num / power( p_base , trunc(log(p_base,abs(p_num)))-trunc(mod(log(p_base,abs(p_num)),p_grouplen)) ), p_precision

)|| case trunc(log(p_base,abs(p_num)))-trunc(mod(log(p_base,abs(p

_num)),p_grouplen))when 0 then ''when 1 then ''when p_grouplen*1 then 'k'when p_grouplen*2 then 'M'when p_grouplen*3 then 'G'when p_grouplen*4 then 'T'

when p_grouplen*5 then 'P'when p_grouplen*6 then 'E'else '*'||p_base||'^'||to_char( trunc(log(p_base,abs(p_nu

m)))-trunc(mod(log(p_base,abs(p_num)),p_grouplen)) )end;

end if;

end; -- tptformat

/*----------------------------------------------------- simple function for parsing arguments from parameter string---------------------------------------------------*/

function getopt( p_parvalues in varchar2,p_extract in varchar2,p_delim in varchar2 default ','

) return varchar2is

ret varchar(1000) := NULL;begin

-- dbms_output.put('p_parvalues = ['||p_parvalues||'] ' );-- dbms_output.put('p_extract = ['||p_extract||'] ' );

if lower(p_parvalues) like lower(p_extract)||'%'or lower(p_parvalues) like '%'||p_delim||lower(p_extract)||'%' then

ret :=nvl (

substr(p_parvalues,instr(p_parvalues, p_extract)+length(p_extract),case

instr(substr(p_parvalues,

instr(p_parvalues, p_extract)+length(p_extract)


19/49

), p_delim

)when 0 then length(p_parvalues)else

instr(substr(p_parvalues,

instr(p_parvalues, p_extract)+length(p_extract)

), p_delim

) - 1end

), chr(0) -- in case parameter was specified but with no valu

e);

elseret := null; -- no parameter found

end if;

-- dbms_output.put_line('ret = ['||replace(ret,chr(0),'\0')||']');

return ret;end; -- getopt

/*----------------------------------------------------- proc for getting session list with username, osuser, machine etc---------------------------------------------------*/procedure get_sessions is

tmp_sessions sestab;begin

select

&_IF_ORA9 s.SADDR

&_IF_ORA9 , s.SID

&_IF_ORA9 , s.SERIAL#

&_IF_ORA9 , s.AUDSID

&_IF_ORA9 , s.PADDR

&_IF_ORA9 , s.USER#

&_IF_ORA9 , s.USERNAME

&_IF_ORA9 , s.COMMAND

&_IF_ORA9 , s.OWNERID

&_IF_ORA9 , s.TADDR

&_IF_ORA9 , s.LOCKWAIT

&_IF_ORA9 , s.STATUS


20/49

&_IF_ORA9 , s.SERVER

&_IF_ORA9 , s.SCHEMA#

&_IF_ORA9 , s.SCHEMANAME

&_IF_ORA9 , s.OSUSER

&_IF_ORA9 , s.PROCESS

&_IF_ORA9 , s.MACHINE

&_IF_ORA9 , s.TERMINAL

&_IF_ORA9 , CASE WHEN s.PROGRAM = 'ORACLE.EXE' THEN '('||bg.name||')' ELSE s.program END program

&_IF_ORA9 , s.TYPE

&_IF_ORA9 , s.SQL_ADDRESS

&_IF_ORA9 , s.SQL_HASH_VALUE

&_IF_ORA9 , s.PREV_SQL_ADDR&_IF_ORA9 , s.PREV_HASH_VALUE

&_IF_ORA9 , s.MODULE

&_IF_ORA9 , s.MODULE_HASH

&_IF_ORA9 , s.ACTION

&_IF_ORA9 , s.ACTION_HASH

&_IF_ORA9 , s.CLIENT_INFO

&_IF_ORA9 , s.FIXED_TABLE_SEQUENCE

&_IF_ORA9 , s.ROW_WAIT_OBJ#

&_IF_ORA9 , s.ROW_WAIT_FILE#

&_IF_ORA9 , s.ROW_WAIT_BLOCK#

&_IF_ORA9 , s.ROW_WAIT_ROW#

&_IF_ORA9 , s.LOGON_TIME

&_IF_ORA9 , s.LAST_CALL_ET

&_IF_ORA9 , s.PDML_ENABLED

&_IF_ORA9 , s.FAILOVER_TYPE

&_IF_ORA9 , s.FAILOVER_METHOD

&_IF_ORA9 , s.FAILED_OVER


21/49

&_IF_ORA9 , s.RESOURCE_CONSUMER_GROUP

&_IF_ORA9 , s.PDML_STATUS

&_IF_ORA9 , s.PDDL_STATUS

&_IF_ORA9 , s.PQ_STATUS

&_IF_ORA9 , s.CURRENT_QUEUE_DURATION

&_IF_ORA9 , s.CLIENT_IDENTIFIER

&_IF_ORA9 , sw.sid SID2

&_IF_ORA9 , sw.SEQ#

&_IF_ORA9 , sw.EVENT

&_IF_ORA9 , sw.P1TEXT

&_IF_ORA9 , sw.P1

&_IF_ORA9 , sw.P1RAW

&_IF_ORA9 , sw.P2TEXT&_IF_ORA9 , sw.P2


&_IF_ORA9 , sw.P3TEXT

&_IF_ORA9 , sw.P3


&_IF_ORA9 , sw.WAIT_TIME

&_IF_ORA9 , sw.SECONDS_IN_WAIT

&_IF_ORA9 , sw.STATE

&_IF_ORA10_OR_HIGHER *bulk collect intotmp_sessions

from&_IF_ORA9 v$session s, v$session_wait sw, v$bgprocess bg, v$processp&_IF_ORA10_OR_HIGHER v$session

where

&_IF_ORA9 s.sid in (&snapper_sid) and s.sid=sw.sid and p.addr = s.paddr and s.paddr = bg.paddr(+);&_IF_ORA10_OR_HIGHER sid in (&snapper_sid);

g_sessions := g_empty_sessions;

for i in 1..tmp_sessions.count loopg_sessions(tmp_sessions(i).sid) := tmp_sessions(i);

end loop;


22/49

end; -- get_sessions

/*----------------------------------------------------- function for getting session list with username, osuser, machine etc-- this func does not update the g_sessions global array but returns session

info as return value---------------------------------------------------*/function get_sessions return sestab is

tmp_sessions sestab;l_return_sessions sestab;

begin

select&_IF_ORA9 s.*,sw.*&_IF_ORA10_OR_HIGHER *

bulk collect intotmp_sessions

from&_IF_ORA9 v$session s, v$session_wait sw&_IF_ORA10_OR_HIGHER v$session

where&_IF_ORA9 s.sid in (&snapper_sid) and s.sid=sw.sid;&_IF_ORA10_OR_HIGHER sid in (&snapper_sid);

for i in 1..tmp_sessions.count loop--output('get_sessions i='||i||' sid='||tmp_sessions(i).sid);l_return_sessions(tmp_sessions(i).sid) := tmp_sessions(i);

end loop;

return l_return_sessions;

end; -- get_sessions

/*----------------------------------------------------- functions for extracting and converting v$session

-- records to varchar2---------------------------------------------------*/function sitem(p in varchar2) return varchar2 asbegin

return '';end; -- sitem varchar2

function sitem(p in number) return varchar2 asbegin

return '';end; -- sitem number

function sitem(p in date) return varchar2 as

beginreturn '';end; -- sitem date

function sitem_raw(p in raw) return varchar2 asbegin

return '';end; -- sitem_raw


23/49

/*----------------------------------------------------- proc for resetting the snapper ash array---------------------------------------------------*/procedure reset_ash isbegin

g_ash_samples_taken := 0;-- clear g_ashg_ash := new sys.dbms_debug_vc2coll();

end; -- reset_ash

/*----------------------------------------------------- proc for getting ash style samples from v$session-- (and v$session_wait in 9i)---------------------------------------------------*/procedure extract_ash is

ash_i number;&_IF_ORA10_OR_HIGHER s v$session%rowtype;&_IF_ORA9 s sestab_rec;

begin

-- keep track how many times we sampled v$session so we could calculate averages later on

g_ash_samples_taken := g_ash_samples_taken + 1;--output('g_sessions.count='||g_sessions.count);ash_i := g_sessions.first;

while ash_i is not null loop

s := g_sessions(ash_i);-- only extract active sessions, TODO: get rid of wait_class for 9i co

mpatibilityif -- active, on cpu

(s.status = 'ACTIVE' and s.state != 'WAITING' and s.sid != g_mysid)

or -- active, waiting for non-idle wait

&_IF_ORA10_OR_HIGHER (s.status = 'ACTIVE' and s.state = 'WAITING' and s.wait_class != 'Idle' and s.sid != g_mysid)&_IF_ORA9 (s.status = 'ACTIVE' and s.state = 'WAITING'&_IF_ORA9 -- Use a fixed list of idle wait events on 9i, since wait_class is not available&_IF_ORA9 and lower(s.event) not in (&_IF_ORA9 'smon timer' -- idle events from 9i&_IF_ORA9 , 'pmon timer'&_IF_ORA9 , 'rdbms ipc message'&_IF_ORA9 , 'null event'&_IF_ORA9 , 'parallel query dequeue'&_IF_ORA9 , 'pipe get'&_IF_ORA9 , 'client message'

&_IF_ORA9 , 'sql*net message from client'&_IF_ORA9 , 'dispatcher timer'&_IF_ORA9 , 'virtual circuit status'&_IF_ORA9 , 'lock manager wait for remote message'&_IF_ORA9 , 'px idle wait'&_IF_ORA9 , 'px deq: execution msg'&_IF_ORA9 , 'px deq: table q normal'&_IF_ORA9 , 'wakeup time manager'&_IF_ORA9 , 'slave wait'&_IF_ORA9 , 'i/o slave wait'


24/49

&_IF_ORA9 , 'jobq slave wait'&_IF_ORA9 , 'null event'&_IF_ORA9 , 'gcs remote message'&_IF_ORA9 , 'gcs for action'&_IF_ORA9 , 'ges remote message'&_IF_ORA9 , 'queue messages'&_IF_ORA9 , 'pmon timer' -- from 11.2.0.2 v$event_name&_IF_ORA9 , 'vktm logical idle wait'&_IF_ORA9 , 'vktm init wait for gsga'&_IF_ORA9 , 'iorm scheduler slave idle wait'&_IF_ORA9 , 'rdbms ipc message'&_IF_ORA9 , 'i/o slave wait'&_IF_ORA9 , 'vkrm idle'&_IF_ORA9 , 'wait for unread message on broadcast channel'&_IF_ORA9 , 'wait for unread message on multiple broadcast channels'&_IF_ORA9 , 'class slave wait'&_IF_ORA9 , 'ksv master wait'&_IF_ORA9 , 'ping'&_IF_ORA9 , 'watchdog main loop'&_IF_ORA9 , 'diag idle wait'&_IF_ORA9 , 'ges remote message'&_IF_ORA9 , 'gcs remote message'&_IF_ORA9 , 'heartbeat monitor sleep'

&_IF_ORA9 , 'gcr sleep'&_IF_ORA9 , 'sga: mman sleep for component shrink'&_IF_ORA9 , 'mrp redo arrival'&_IF_ORA9 , 'lns async archive log'&_IF_ORA9 , 'lns async dest activation'&_IF_ORA9 , 'lns async end of log'&_IF_ORA9 , 'simulated log write delay'&_IF_ORA9 , 'lgwr real time apply sync'&_IF_ORA9 , 'parallel recovery slave idle wait'&_IF_ORA9 , 'logminer builder: idle'&_IF_ORA9 , 'logminer builder: branch'&_IF_ORA9 , 'logminer preparer: idle'&_IF_ORA9 , 'logminer reader: log (idle)'

&_IF_ORA9 , 'logminer reader: redo (idle)'&_IF_ORA9 , 'logminer client: transaction'&_IF_ORA9 , 'logminer: other'&_IF_ORA9 , 'logminer: activate'&_IF_ORA9 , 'logminer: reset'&_IF_ORA9 , 'logminer: find session'&_IF_ORA9 , 'logminer: internal'&_IF_ORA9 , 'logical standby apply delay'&_IF_ORA9 , 'parallel recovery coordinator waits for slave cleanup'&_IF_ORA9 , 'parallel recovery control message reply'&_IF_ORA9 , 'parallel recovery slave next change'&_IF_ORA9 , 'px deq: txn recovery start'

&_IF_ORA9 , 'px deq: txn recovery reply'&_IF_ORA9 , 'fbar timer'&_IF_ORA9 , 'smon timer'&_IF_ORA9 , 'px deq: metadata update'&_IF_ORA9 , 'space manager: slave idle wait'&_IF_ORA9 , 'px deq: index merge reply'&_IF_ORA9 , 'px deq: index merge execute'&_IF_ORA9 , 'px deq: index merge close'&_IF_ORA9 , 'px deq: kdcph_mai'&_IF_ORA9 , 'px deq: kdcphc_ack'


25/49

&_IF_ORA9 , 'shared server idle wait'&_IF_ORA9 , 'dispatcher timer'&_IF_ORA9 , 'cmon timer'&_IF_ORA9 , 'pool server timer'&_IF_ORA9 , 'jox jit process sleep'&_IF_ORA9 , 'jobq slave wait'&_IF_ORA9 , 'pipe get'&_IF_ORA9 , 'px deque wait'&_IF_ORA9 , 'px idle wait'&_IF_ORA9 , 'px deq: join ack'&_IF_ORA9 , 'px deq credit: need buffer'&_IF_ORA9 , 'px deq credit: send blkd'&_IF_ORA9 , 'px deq: msg fragment'&_IF_ORA9 , 'px deq: parse reply'&_IF_ORA9 , 'px deq: execute reply'&_IF_ORA9 , 'px deq: execution msg'&_IF_ORA9 , 'px deq: table q normal'&_IF_ORA9 , 'px deq: table q sample'&_IF_ORA9 , 'streams fetch slave: waiting for txns'&_IF_ORA9 , 'streams: waiting for messages'&_IF_ORA9 , 'streams capture: waiting for archive log'&_IF_ORA9 , 'single-task message'&_IF_ORA9 , 'sql*net message from client'&_IF_ORA9 , 'sql*net vector message from client'

&_IF_ORA9 , 'sql*net vector message from dblink'&_IF_ORA9 , 'pl/sql lock timer'&_IF_ORA9 , 'streams aq: emn coordinator idle wait'&_IF_ORA9 , 'emon slave idle wait'&_IF_ORA9 , 'streams aq: waiting for messages in the queue'&_IF_ORA9 , 'streams aq: waiting for time management or cleanup tasks'&_IF_ORA9 , 'streams aq: delete acknowledged messages'&_IF_ORA9 , 'streams aq: deallocate messages from streams pool'&_IF_ORA9 , 'streams aq: qmn coordinator idle wait'&_IF_ORA9 , 'streams aq: qmn slave idle wait'&_IF_ORA9 , 'streams aq: rac qmn coordinator idle wait'

&_IF_ORA9 , 'hs message to agent'&_IF_ORA9 , 'asm background timer'&_IF_ORA9 , 'auto-sqltune: wait graph update'&_IF_ORA9 , 'wcr: replay client notify'&_IF_ORA9 , 'wcr: replay clock'&_IF_ORA9 , 'wcr: replay paused'&_IF_ORA9 , 'js external job'&_IF_ORA9 , 'cell worker idle')&_IF_ORA9 and s.sid != g_mysid)

then--output('extract_ash: i='||i||' sid='||s.sid||' hv='||s.sql_hash_v

alue||' sqlid='||s.sql_id);

-- if not actually waiting for anything, clear the past wait eventdetailsif s.state != 'WAITING' then

s.state:='ON CPU';s.event:='ON CPU';

&_IF_ORA10_OR_HIGHER s.wait_class:='ON CPU'; --TODO: What do we need to do for 9i here?

s.p1:=NULL;s.p2:=NULL;s.p3:=NULL;


26/49

end if;

g_ash.extend;

-- max length 1000 bytes (due to dbms_debug_vc2coll)g_ash(g_ash.count) := substr(

sitem(s.sid) -- 1||sitem(s.username) -- 2 -- 30 byte

s||sitem(s.machine) -- 3 -- 64 byte

s||sitem(s.terminal) -- 4 -- 30 byte

s||sitem(s.program) -- 5 -- 48 byte

s||sitem(s.event) -- 6 -- 64 byte

s&_IF_ORA10_OR_HIGHER ||sitem(s.wait_class) -- 7 -- 64 byte

s, 10g+&_IF_ORA9 ||sitem('N/A') -- 7

||sitem(s.state) -- 8||sitem(s.p1) -- 9||sitem(s.p2) -- 10||sitem(s.p3) -- 11

||sitem(s.row_wait_obj#) -- 12||sitem(s.row_wait_file#) -- 13||sitem(s.row_wait_block#) -- 14||sitem(s.row_wait_row#) -- 15

&_IF_ORA10_OR_HIGHER ||sitem(s.blocking_session_status) -- 16 -- 10g+&_IF_ORA9 ||sitem('N/A') -- 16 -- 10g+

-- 16&_NO_BLK_INST ||sitem('N/A') -- 17 -- 10gR2+&_YES_BLK_INST ||sitem(s.blocking_instance) -- 17 -- 10gR2+

&_IF_ORA10_OR_HIGHER ||sitem(s.blocking_session) -- 18 -- 10g+&_IF_ORA9 ||sitem('N/A') -- 18 -- 10g+

||sitem(s.sql_hash_value) -- 19

&_IF_ORA10_OR_HIGHER ||sitem(s.sql_id) -- 20 -- 10g+&_IF_ORA9 ||sitem(to_char(s.sql_hash_value)) -- 20 -- 9i, let's just put hash_value into sql_id

&_IF_ORA10_OR_HIGHER ||sitem(s.sql_child_number) -- 21 -- 10g+&_IF_ORA9 ||sitem('N/A') -- 21 -- 10g+

&_NO_PLSQL_OBJ_ID ||sitem('N/A') -- 22&_NO_PLSQL_OBJ_ID ||sitem('N/A') -- 23&_NO_PLSQL_OBJ_ID ||sitem('N/A') -- 24&_NO_PLSQL_OBJ_ID ||sitem('N/A') -- 25&_YES_PLSQL_OBJ_ID ||sitem(s.plsql_entry_object_id) -- 22&_YES_PLSQL_OBJ_ID ||sitem(s.plsql_entry_subprogram_id) -- 23&_YES_PLSQL_OBJ_ID ||sitem(s.plsql_object_id) -- 24&_YES_PLSQL_OBJ_ID ||sitem(s.plsql_subprogram_id) -- 25

||sitem(s.module) -- 26 -- 48 bytes||sitem(s.action) -- 27 -- 32 byte

s||sitem(s.client_identifier) -- 28 -- 64 byte

s&_IF_ORA10_OR_HIGHER ||sitem(s.service_name) -- 29 -- 64 byte

s, 10g+&_IF_ORA9 ||sitem('N/A') -- 29

, 1, 1000);


27/49

end if; -- sample is of an active session

ash_i := g_sessions.next(ash_i);

end loop;

exceptionwhen no_data_found then output('error in extract_ash(): no_data_found for

item '||i);end; -- extract_ash

/*----------------------------------------------------- proc for querying performance data into collections---------------------------------------------------*/procedure snap( p_snapdate in out date, p_stats in out stab ) is

lv_include_stat varchar2(1000) := nvl( lower(getopt('&snapper_options', 'sinclude=' )), '%');

lv_include_latch varchar2(1000) := nvl( lower(getopt('&snapper_options', 'linclude=' )), '%');

lv_include_time varchar2(1000) := nvl( lower(getopt('&snapper_options', 'tinclude=' )), '%');

lv_include_wait varchar2(1000) := nvl( lower(getopt('&snapper_options', 'winclude=' )), '%');

begin

p_snapdate := sysdate;

select *bulk collect into p_statsfrom (

select 'STAT' stype, sid, statistic# -pls_adjust statistic#, value, null event_count

from v$sesstatwhere sid in (&snapper_sid)and (lv_gather like '%s%' or lv_gather

like '%a%')and statistic# in (select /*+ no_unnest

*/ statistic# from v$statnamewhere lower(name) li

ke '%'||lv_include_stat||'%'&_IF_ORA10_OR_HIGHER or regexp_like (name

, lv_include_stat, 'i'))

--union all

select 'WAIT', sw.sid,en.event# + (select count(*) fro

m v$statname) + 1 - pls_adjust,nvl(se.time_waited_micro,0) + (

decode(se.event||sw.state, sw.event||'WAITING', sw.seconds_in_wait, 0) * 1000000) value, total_waits event_count

from v$session_wait sw, v$session_eventse, v$event_name en

where sw.sid = se.sid


28/49

and se.event = en.nameand se.sid in (&snapper_sid)and (lv_gather like '%w%' or lv_gathe

r like '%a%')and event# in (select event# from v$

event_namewhere lower(name) li

ke '%'||lv_include_wait||'%'&_IF_ORA10_OR_HIGHER or regexp_like (n

ame, lv_include_wait, 'i'))

--&_IF_ORA10_OR_HIGHER union all&_IF_ORA10_OR_HIGHER select 'TIME' stype, sid, stat_id - pls

_adjust statistic#, value, null event_count&_IF_ORA10_OR_HIGHER from v$sess_time_model&_IF_ORA10_OR_HIGHER where sid in (&snapper_sid)&_IF_ORA10_OR_HIGHER and (lv_gather like '%t%' or lv_gathe

r like '%a%')&_IF_ORA10_OR_HIGHER and stat_id in (select stat_id from v$s

ys_time_model&_IF_ORA10_OR_HIGHER where lower(stat_nam

e) like '%'||lv_include_time||'%'&_IF_ORA10_OR_HIGHER or regexp_like (s

tat_name, lv_include_time, 'i')&_IF_ORA10_OR_HIGHER )--union allselect 'LATG', -1 sid,

l.latch# +(select count(*) from v$statn

ame) +(select count(*) from v$event

_name) +1 - pls_adjust statistic#,

l.gets + l.immediate_gets value,null event_count

from v$latch lwhere(lv_gather like '%l%' or lv_gather

like '%a%')and latch# in (select latch# from v$lat

chnamewhere lower(name) like '

%'||lv_include_latch||'%'&_IF_ORA10_OR_HIGHER or regexp_like (name,

lv_include_latch, 'i'))

--&_IF_X_ACCESSIBLE &_IF_LOWER_THAN_ORA11 union all

&_IF_X_ACCESSIBLE &_IF_LOWER_THAN_ORA11 select 'BUFG', -1 sid,&_IF_X_ACCESSIBLE &_IF_LOWER_THAN_ORA11 s.indx +&_IF_X_ACCESSIBLE &_IF_LOWER_THAN_ORA11 (select count(*) from v$stat

name) +&_IF_X_ACCESSIBLE &_IF_LOWER_THAN_ORA11 (select count(*) from v$even

t_name) +&_IF_X_ACCESSIBLE &_IF_LOWER_THAN_ORA11 (select count(*) from v$latc

h) +&_IF_X_ACCESSIBLE &_IF_LOWER_THAN_ORA11 1 - pls_adjust statistic#,&_IF_X_ACCESSIBLE &_IF_LOWER_THAN_ORA11 s.why0+s.why1+s.why2 value, null


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event_count&_IF_X_ACCESSIBLE &_IF_LOWER_THAN_ORA11 from x$kcbsw s, x$kcbwh w&_IF_X_ACCESSIBLE &_IF_LOWER_THAN_ORA11 where&_IF_X_ACCESSIBLE &_IF_LOWER_THAN_ORA11 s.indx = w.indx&_IF_X_ACCESSIBLE &_IF_LOWER_THAN_ORA11 and s.why0+s.why1+s.why2 > 0&_IF_X_ACCESSIBLE &_IF_LOWER_THAN_ORA11 and (lv_gather like '%b%' or lv_gath

er like '%a%')--

&_IF_X_ACCESSIBLE &_IF_ORA11_OR_HIGHER union all&_IF_X_ACCESSIBLE &_IF_ORA11_OR_HIGHER select 'BUFG', -1 sid,&_IF_X_ACCESSIBLE &_IF_ORA11_OR_HIGHER sw.indx +&_IF_X_ACCESSIBLE &_IF_ORA11_OR_HIGHER (select count(*) from v$stat

name) +&_IF_X_ACCESSIBLE &_IF_ORA11_OR_HIGHER (select count(*) from v$even

t_name) +&_IF_X_ACCESSIBLE &_IF_ORA11_OR_HIGHER (select count(*) from v$latc

h) +&_IF_X_ACCESSIBLE &_IF_ORA11_OR_HIGHER 1 - pls_adjust statistic#,&_IF_X_ACCESSIBLE &_IF_ORA11_OR_HIGHER why.why0+why.why1+why.why2+sw.ot

her_wait value, null event_count&_IF_X_ACCESSIBLE &_IF_ORA11_OR_HIGHER from&_IF_X_ACCESSIBLE &_IF_ORA11_OR_HIGHER x$kcbuwhy why,&_IF_X_ACCESSIBLE &_IF_ORA11_OR_HIGHER x$kcbwh dsc,&_IF_X_ACCESSIBLE &_IF_ORA11_OR_HIGHER x$kcbsw sw

&_IF_X_ACCESSIBLE &_IF_ORA11_OR_HIGHER where&_IF_X_ACCESSIBLE &_IF_ORA11_OR_HIGHER why.indx = dsc.indx&_IF_X_ACCESSIBLE &_IF_ORA11_OR_HIGHER and why.why0 + why.why1 + why.why2 +sw.other_wait > 0&_IF_X_ACCESSIBLE &_IF_ORA11_OR_HIGHER and dsc.indx = sw.indx&_IF_X_ACCESSIBLE &_IF_ORA11_OR_HIGHER and why.indx = sw.indx&_IF_X_ACCESSIBLE &_IF_ORA11_OR_HIGHER -- deliberate cartesian join&_IF_X_ACCESSIBLE &_IF_ORA11_OR_HIGHER and (lv_gather like '%b%' or lv_gath

er like '%a%')--union allselect 'ENQG', -1 sid,

ascii(substr(e.eq_type,1,1))*256

+ ascii(substr(e.eq_type,2,1)) + (select count(*) from v$statname) +

(select count(*) from v$event_name) +

(select count(*) from v$latch) +&_IF_X_ACCESSIBLE (select count(*) from x$kcbwh

) +1 - pls_adjust statistic#,

e.total_req# value, null event_count

from v$enqueue_stat e

where (lv_gather like '%e%' or lv_gather like '%a%')

) snapper_statsorder by sid, stype, statistic#;

end snap;

/*----------------------------------------------------- proc for dumping ASH data out in grouped


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-- and ordered fashion---------------------------------------------------*/procedure out_ash( p_ash_columns in varchar2, p_topn in number := 10 ) as

-- whether to print given column or notp_sid number := 0;p_username number := 0;p_machine number := 0;p_terminal number := 0;p_program number := 0;p_event number := 0;p_wait_class number := 0;p_state number := 0;p_p1 number := 0;p_p2 number := 0;p_p3 number := 0;p_row_wait_obj# number := 0;p_row_wait_file# number := 0;p_row_wait_block# number := 0;p_row_wait_row# number := 0;p_blocking_session_status number := 0;p_blocking_instance number := 0;p_blocking_session number := 0;p_sql_hash_value number := 0;

p_sql_id number := 0;p_sql_child_number number := 0;p_plsql_entry_object_id number := 0;p_plsql_entry_subprogram_id number := 0;p_plsql_object_id number := 0;p_plsql_subprogram_id number := 0;p_module number := 0;p_action number := 0;p_client_identifier number := 0;p_service_name number := 0;

-- temporary variables for holding session details (for later formatting)

o_sid varchar2(100);o_username varchar2(100);o_machine varchar2(100);o_terminal varchar2(100);o_program varchar2(100);o_event varchar2(100);o_wait_class varchar2(100);o_state varchar2(100);o_p1 varchar2(100);o_p2 varchar2(100);o_p3 varchar2(100);o_row_wait_obj# varchar2(100);o_row_wait_file# varchar2(100);

o_row_wait_block# varchar2(100);o_row_wait_row# varchar2(100);o_blocking_session_status varchar2(100);o_blocking_instance varchar2(100);o_blocking_session varchar2(100);o_sql_hash_value varchar2(100);o_sql_id varchar2(100);o_sql_child_number varchar2(100);o_plsql_entry_object_id varchar2(100);o_plsql_entry_subprogram_id varchar2(100);


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o_plsql_object_id varchar2(100);o_plsql_subprogram_id varchar2(100);o_module varchar2(100);o_action varchar2(100);o_client_identifier varchar2(100);o_service_name varchar2(100);

-- helper local varsl_ash_grouping number := 0;l_output_line varchar2(4000);l_ash_header_line varchar2(4000);

begin

-- bail out if no ASH samples recordedif g_ash.count = 0 then

output(' ');

return;end if;

l_ash_header_line := 'Active%';

-- ash,ash1,ash2,ash3 parameter column group tokenizerfor s in (-- ORA9 SQL*Plus returns only a single row with CONNECT BY LEVEL; An additonal outer SELECT * from (...) fixes this&_IF_ORA9 select * from (

SELECT LEVEL, SUBSTR( TOKEN, DECODE(LEVEL, 1, 1, INSTR(TOKEN, DELIMITER, 1, LEVEL-1)+1), INSTR(TOKEN, DELIMITER, 1, LEVEL) -DECODE(LEVEL, 1, 1, INSTR(TOKEN, DELIMITER, 1, LEVEL-1)+1)) TOKEN

FROM ( SELECT REPLACE( LOWER(p_ash_columns) ,' ','')||'+' AS TOKEN

, '+' AS DELIMITERFROM DUAL)CONNECT BY

INSTR(TOKEN, DELIMITER, 1, LEVEL)>0&_IF_ORA9 )

ORDER BYLEVEL ASC

) loop

case s.token-- actual column names in v$session

when 'sid' then l_ash_grouping := l_ash_grouping + c_sid ; l_ash_header_line := l_ash_header_line ||' | ' || lpad('SID' , w_sid , ' ');

when 'username' then l_ash_grouping := l_ash_grouping + c_username ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('USERNAME' , w_username , ' ');

when 'machine' then l_ash_grouping := l_ash_grouping + c_machine ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('MACHINE' , w_machine , ' ');

when 'terminal' then l_ash_grouping := l_ash_g


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rouping + c_terminal ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('TERMINAL' , w_terminal , ' ');

when 'program' then l_ash_grouping := l_ash_grouping + c_program ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('PROGRAM' , w_program , ' ');

when 'event' then l_ash_grouping := l_ash_grouping + c_event ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('EVENT' , w_event , ' ');

when 'wait_class' then l_ash_grouping := l_ash_grouping + c_wait_class ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('WAIT_CLASS' , w_wait_class , ' ');

when 'state' then l_ash_grouping := l_ash_grouping + c_state ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('STATE' , w_state , ' ');

when 'p1' then l_ash_grouping := l_ash_grouping + c_p1 ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('P1' , w_p1 , ' ');



when 'row_wait_obj#' then l_ash_grouping := l_ash_g

rouping + c_row_wait_obj# ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('ROW_WAIT_OBJ#' , w_row_wait_obj# , ' ');when 'row_wait_file#' then l_ash_grouping := l_ash_g

rouping + c_row_wait_file# ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('ROW_WAIT_FILE#' , w_row_wait_file# , ' ');

when 'row_wait_block#' then l_ash_grouping := l_ash_grouping + c_row_wait_block# ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('ROW_WAIT_BLOCK#' , w_row_wait_block# , ' ');

when 'row_wait_row#' then l_ash_grouping := l_ash_grouping + c_row_wait_row# ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('ROW_WAIT_ROW#' , w_row_wait_row# , ' ');

when 'blocking_session_status' then l_ash_grouping := l_ash_grouping + c_blocking_session_status ; l_ash_header_line := l_ash_header_line ||

' | ' || rpad('BLOCKING_SESSION_STATUS' , w_blocking_session_status , ' ');when 'blocking_instance' then l_ash_grouping := l_ash_grouping + c_blocking_instance ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('BLOCKING_INSTANCE' , w_blocking_instance , ' ');

when 'blocking_session' then l_ash_grouping := l_ash_grouping + c_blocking_session ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('BLOCKING_SESSION' , w_blocking_session , ' ');

when 'sql_hash_value' then l_ash_grouping := l_ash_grouping + c_sql_hash_value ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('SQL_HASH_VALUE' , w_sql_hash_value , ' ');

when 'sql_id' then l_ash_grouping := l_ash_grouping + c_sql_id ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('SQL_ID' , w_sql_id , ' ');

when 'sql_child_number' then l_ash_grouping := l_ash_grouping + c_sql_child_number ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('SQL_CHILD_NUMBER' , w_sql_child_number , ' ');

when 'plsql_entry_object_id' then l_ash_grouping := l_ash_grouping + c_plsql_entry_object_id ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('PLSQL_ENTRY_OBJECT_ID' , w_plsql_entry_object_id , ' ');

when 'plsql_entry_subprogram_id' then l_ash_grouping := l_ash_grouping + c_plsql_entry_subprogram_id; l_ash_header_line := l_ash_header_line ||' | ' || rpad('PLSQL_ENTRY_SUBPROGRAM_ID' , w_plsql_entry_subprogram_id, ' ');

when 'plsql_object_id' then l_ash_grouping := l_ash_g


33/49

rouping + c_plsql_object_id ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('PLSQL_OBJECT_ID' , w_plsql_object_id , ' ');

when 'plsql_subprogram_id' then l_ash_grouping := l_ash_grouping + c_plsql_subprogram_id ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('PLSQL_SUBPROGRAM_ID' , w_plsql_subprogram_id , ' ');

when 'module' then l_ash_grouping := l_ash_grouping + c_module ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('MODULE' , w_module , ' ');

when 'action' then l_ash_grouping := l_ash_grouping + c_action ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('ACTION' , w_action , ' ');

when 'client_identifier' then l_ash_grouping := l_ash_grouping + c_client_identifier ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('CLIENT_IDENTIFIER' , w_client_identifier , ' ');

when 'service_name' then l_ash_grouping := l_ash_grouping + c_service_name ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('SERVICE_NAME' , w_service_name , ' ');

-- aliases for convenience (only either real name or alias shouldbe used together at the same time) , ' ');

when 'user' then l_ash_grouping := l_ash_grouping + c_username ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('USERNAME' , w_username , ' ');

when 'obj' then l_ash_grouping := l_ash_grouping + c_row_wait_obj# ; l_ash_header_line := l_ash_header_line ||

' | ' || rpad('ROW_WAIT_OBJ#' , w_row_wait_obj# , ' ');when 'file' then l_ash_grouping := l_ash_grouping + c_row_wait_file# ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('ROW_WAIT_FILE#' , w_row_wait_file# , ' ');

when 'block' then l_ash_grouping := l_ash_grouping + c_row_wait_block# ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('ROW_WAIT_BLOCK#' , w_row_wait_block# , ' ');

when 'row' then l_ash_grouping := l_ash_grouping + c_row_wait_row# ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('ROW_WAIT_ROW#' , w_row_wait_row# , ' ');

when 'bss' then l_ash_grouping := l_ash_grouping + c_blocking_session_status ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('BLOCKING_SESSION_STATUS' , w_blocking_session_status , ' ');

when 'bsi' then l_ash_grouping := l_ash_grouping + c_blocking_instance ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('BLOCKING_INSTANCE' , w_blocking_instance , ' ');

when 'bs' then l_ash_grouping := l_ash_grouping + c_blocking_session ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('BLOCKING_SESSION' , w_blocking_session , ' ');

when 'sql' then l_ash_grouping := l_ash_grouping + c_sql_hash_value ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('SQL_HASH_VALUE' , w_sql_hash_value , ' ');

when 'sqlid' then l_ash_grouping := l_ash_grouping + c_sql_id ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('SQL_ID' , w_sql_id , ' ');

when 'child' then l_ash_grouping := l_ash_g

rouping + c_sql_child_number ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('SQL_CHILD_NUMBER' , w_sql_child_number , ' ');when 'plsql_eoid' then l_ash_grouping := l_ash_g

rouping + c_plsql_entry_object_id ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('PLSQL_ENTRY_OBJECT_ID' , w_plsql_entry_object_id , ' ');

when 'plsql_esubpid' then l_ash_grouping := l_ash_grouping + c_plsql_entry_subprogram_id; l_ash_header_line := l_ash_header_line ||' | ' || rpad('PLSQL_ENTRY_SUBPROGRAM_ID' , w_plsql_entry_subprogram_id, ' ');

when 'plsql_oid' then l_ash_grouping := l_ash_grouping + c_plsql_object_id ; l_ash_header_line := l_ash_header_line ||


34/49

' | ' || rpad('PLSQL_OBJECT_ID' , w_plsql_object_id , ' ');when 'plsql_subpid' then l_ash_grouping := l_ash_g

rouping + c_plsql_subprogram_id ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('PLSQL_SUBPROGRAM_ID' , w_plsql_subprogram_id , ' ');

when 'mod' then l_ash_grouping := l_ash_grouping + c_module ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('MODULE' , w_module , ' ');

when 'act' then l_ash_grouping := l_ash_grouping + c_action ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('ACTION' , w_action , ' ');

when 'cid' then l_ash_grouping := l_ash_grouping + c_client_identifier ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('CLIENT_IDENTIFIER' , w_client_identifier , ' ');

when 'service' then l_ash_grouping := l_ash_grouping + c_service_name ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('SERVICE_NAME' , w_service_name , ' ');

when 'wait_event' then l_ash_grouping := l_ash_grouping + c_event ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('EVENT' , w_event , ' ');

when 'wait_state' then l_ash_grouping := l_ash_grouping + c_state ; l_ash_header_line := l_ash_header_line ||' | ' || rpad('STATE' , w_state , ' ');

elsenull;

-- raise_application_error(-20000, 'Invalid ASH column name');end case; -- case s.token

end loop; -- tokenizer

output(' ');output(lpad('-',length(l_ash_header_line),'-'));output(l_ash_header_line);output(lpad('-',length(l_ash_header_line),'-'));

-- this is needed for "easy" sorting and group by ops (without any customstored object types!)

for i in (

with raw_records as (select column_value rec from table(cast(g_ash as sys.dbms_debug_vc2coll))

),ash_records as (

selectsubstr(r.rec, instr(r.rec, '


35/49

instr(r.rec, '')-1) p1, substr(r.rec, instr(r.rec, '


36/49

, decode(bitand(l_ash_grouping, power(2, s_event

)), 0, chr(0), event ) as event

, decode(bitand(l_ash_grouping, power(2, s_wait_class)), 0, chr(0), wait_class ) as wait_class

, decode(bitand(l_ash_grouping, power(2, s_state)), 0, chr(0), state ) as state

, decode(bitand(l_ash_grouping, power(2, s_p1)), 0, chr(0), p1 ) as p1



, decode(bitand(l_ash_grouping, power(2, s_row_wait_obj#)), 0, chr(0), row_wait_obj# ) as row_wait_obj#

, decode(bitand(l_ash_grouping, power(2, s_row_wait_file#)), 0, chr(0), row_wait_file# ) as row_wait_file#

, decode(bitand(l_ash_grouping, power(2, s_row_wait_block#)), 0, chr(0), row_wait_block# ) as row_wait_block#

, decode(bitand(l_ash_grouping, power(2, s_row_wait_row#)), 0, chr(0), row_wait_row# ) as row_wait_row#

, decode(bitand(l_ash_grouping, power(2, s_blocking_session_status)), 0, chr(0), blocking_session_status ) as blocking_session_status

, decode(bitand(l_ash_grouping, power(2, s_blocking_instance)), 0, chr(0), blocking_instance ) as blocking_instance

, decode(bitand(l_ash_grouping, power(2, s_blocking_session)), 0, chr(0), blocking_session ) as blocking_session

, decode(bitand(l_ash_grouping, power(2, s_sql_hash_value)), 0, chr(0), sql_hash_value ) as sql_hash_value

, decode(bitand(l_ash_grouping, power(2, s_sql_id)), 0, chr(0), sql_id ) as sql_id

, decode(bitand(l_ash_grouping, power(2, s_sql_child_number)), 0, chr(0), sql_child_number ) as sql_child_number

, decode(bitand(l_ash_grouping, power(2, s_plsql_entry_object_id

)), 0, chr(0), plsql_entry_object_id ) as plsql_entry_object_id

, decode(bitand(l_ash_grouping, power(2, s_plsql_entry_subprogram_id )), 0, chr(0), plsql_entry_subprogram_id ) as plsql_entry_subprogram_id

, decode(bitand(l_ash_grouping, power(2, s_plsql_object_id)), 0, chr(0), plsql_object_id ) as plsql_object_id

, decode(bitand(l_ash_grouping, power(2, s_plsql_subprogram_id)), 0, chr(0), plsql_subprogram_id ) as plsql_subprogram_id


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, decode(bitand(l_ash_grouping, power(2, s_module

)), 0, chr(0), module ) as module

, decode(bitand(l_ash_grouping, power(2, s_action)), 0, chr(0), action ) as action

, decode(bitand(l_ash_grouping, power(2, s_client_identifier)), 0, chr(0), client_identifier ) as client_identifier

, decode(bitand(l_ash_grouping, power(2, s_service_name)), 0, chr(0), service_name ) as service_name

, count(*)/g_ash_samples_taken average_active_samplesfrom

ash_records agroup by

decode(bitand(l_ash_grouping, power(2, s_sid)), 0, chr(0), sid ) -- sid

, decode(bitand(l_ash_grouping, power(2, s_username)), 0, chr(0), username ) -- username

, decode(bitand(l_ash_grouping, power(2, s_machine

)), 0, chr(0), machine ) -- machine, decode(bitand(l_ash_grouping, power(2, s_terminal

)), 0, chr(0), terminal ) -- terminal

, decode(bitand(l_ash_grouping, power(2, s_program)), 0, chr(0), program ) -- program

, decode(bitand(l_ash_grouping, power(2, s_event)), 0, chr(0), event ) -- event

, decode(bitand(l_ash_grouping, power(2, s_wait_class)), 0, chr(0), wait_class ) -- wait_class

, decode(bitand(l_ash_grouping, power(2, s_state)), 0, chr(0), state ) -- state

, decode(bitand(l_ash_grouping, power(2, s_p1)), 0, chr(0), p1 ) -- p1



, decode(bitand(l_ash_grouping, power(2, s_row_wait_obj#)), 0, chr(0), row_wait_obj# ) -- row_wait_obj#

, decode(bitand(l_ash_grouping, power(2, s_row_wait_file#)), 0, chr(0), row_wait_file# ) -- row_wait_file#

, decode(bitand(l_ash_grouping, power(2, s_row_wait_block#)), 0, chr(0), row_wait_block# ) -- row_wait_block#

, decode(bitand(l_ash_grouping, power(2, s_row_wait_row#


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)), 0, chr(0), row_wait_row# ) -- row_wait_row#

, decode(bitand(l_ash_grouping, power(2, s_blocking_session_status)), 0, chr(0), blocking_session_status ) -- blocking_session_status

, decode(bitand(l_ash_grouping, power(2, s_blocking_instance)), 0, chr(0), blocking_instance ) -- blocking_instance

, decode(bitand(l_ash_grouping, power(2, s_blocking_session)), 0, chr(0), blocking_session ) -- blocking_session

, decode(bitand(l_ash_grouping, power(2, s_sql_hash_value)), 0, chr(0), sql_hash_value ) -- sql_hash_value

, decode(bitand(l_ash_grouping, power(2, s_sql_id)), 0, chr(0), sql_id ) -- sql_id

, decode(bitand(l_ash_grouping, power(2, s_sql_child_number)), 0, chr(0), sql_child_number ) -- sql_child_number

, decode(bitand(l_ash_grouping, power(2, s_plsql_entry_object_id)), 0, chr(0), plsql_entry_object_id ) -- plsql_entry_object_id

, decode(bitand(l_ash_grouping, power(2, s_plsql_entry_subprogram_i

d )), 0, chr(0), plsql_entry_subprogram_id ) -- plsql_entry_subprogram_id, decode(bitand(l_ash_grouping, power(2, s_plsql_object_id

)), 0, chr(0), plsql_object_id ) -- plsql_object_id

, decode(bitand(l_ash_grouping, power(2, s_plsql_subprogram_id)), 0, chr(0), plsql_subprogram_id ) -- plsql_subprogram_id

, decode(bitand(l_ash_grouping, power(2, s_module)), 0, chr(0), module ) -- module

, decode(bitand(l_ash_grouping, power(2, s_action)), 0, chr(0), action ) -- action

, decode(bitand(l_ash_grouping, power(2, s_client_identifier)), 0, chr(0), client_identifier ) -- client_identifier

, decode(bitand(l_ash_grouping, power(2, s_service_name)), 0, chr(0), service_name ) -- service_name

order bycount(*)/g_ash_samples_taken desc

)where rownum


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o_program := CASE WHEN i.program= chr(0) THEN null ELSE nvl(i.program , ' ') END;

o_event := CASE WHEN i.event= chr(0) THEN null ELSE nvl(i.event , ' ') END;

o_wait_class := CASE WHEN i.wait_class= chr(0) THEN null ELSE nvl(i.wait_class , ' ') END;

o_state := CASE WHEN i.state= chr(0) THEN null ELSE nvl(i.state , ' ') END;

o_p1 := CASE WHEN i.p1= chr(0) THEN null ELSE nvl(i.p1 , ' ') END;



o_row_wait_obj# := CASE WHEN i.row_wait_obj#= chr(0) THEN null ELSE nvl(i.row_wait_obj# , ' ') END;

o_row_wait_file# := CASE WHEN i.row_wait_file#= chr(0) THEN null ELSE nvl(i.row_wait_file# , ' ') END;

o_row_wait_block# := CASE WHEN i.row_wait_block#= chr(0) THEN null ELSE nvl(i.row_wait_block# , ' ') END;

o_row_wait_row# := CASE WHEN i.row_wait_row#= chr(0) THEN null ELSE nvl(i.row_wait_row# , ' ') END;

o_blocking_session_status := CASE WHEN i.blocking_session_status= chr(0) THEN null ELSE nvl(i.blocking_session_status , ' ') END;

o_blocking_instance := CASE WHEN i.blocking_instance= chr(0) THEN null ELSE nvl(i.blocking_instance , ' ') END;o_blocking_session := CASE WHEN i.blocking_session

= chr(0) THEN null ELSE nvl(i.blocking_session , ' ') END;o_sql_hash_value := CASE WHEN i.sql_hash_value

= chr(0) THEN null ELSE nvl(i.sql_hash_value , ' ') END;o_sql_id := CASE WHEN i.sql_id

= chr(0) THEN null ELSE nvl(i.sql_id , ' ') END;o_sql_child_number := CASE WHEN i.sql_child_number

= chr(0) THEN null ELSE nvl(i.sql_child_number , ' ') END;o_plsql_entry_object_id := CASE WHEN i.plsql_entry_object_id

= chr(0) THEN null ELSE nvl(i.plsql_entry_object_id , ' ') END;o_plsql_entry_subprogram_id := CASE WHEN i.plsql_entry_subprogram_id

= chr(0) THEN null ELSE nvl(i.plsql_entry_subprogram_id , ' ') END;o_plsql_object_id := CASE WHEN i.plsql_object_id= chr(0) THEN null ELSE nvl(i.plsql_object_id , ' ') END;

o_plsql_subprogram_id := CASE WHEN i.plsql_subprogram_id= chr(0) THEN null ELSE nvl(i.plsql_subprogram_id , ' ') END;

o_module := CASE WHEN i.module= chr(0) THEN null ELSE nvl(i.module , ' ') END;

o_action := CASE WHEN i.action= chr(0) THEN null ELSE nvl(i.action , ' ') END;

o_client_identifier := CASE WHEN i.client_identifier= chr(0) THEN null ELSE nvl(i.client_identifier , ' ') END;

o_service_name := CASE WHEN i.service_name= chr(0) THEN null ELSE nvl(i.service_name , ' ') END;

-- print the activity % as the first columnl_output_line := lpad(to_char(round(i.average_active_samples*100))||'%

', w_activity_pct, ' ');

-- loop through ash columns to find what to print and in which orderfor s in (

-- ORA9 SQL*Plus returns only a single row with CONNECT BY LEVEL; An additonal outer SELECT * from (...) fixes this


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&_IF_ORA9 select * from (SELECT LEVEL

, SUBSTR( TOKEN, DECODE(LEVEL, 1, 1, INSTR(TOKEN, DELIMITER, 1, LEVEL-1

)+1), INSTR(TOKEN, DELIMITER, 1, LEVEL) -DECODE(LEVEL, 1, 1, INSTR(TOKEN, DELIMITER, 1, LEVEL-1)+1

)) TOKEN

FROM ( SELECT REPLACE( LOWER(p_ash_columns) ,' ','')||'+' AS TOKEN

, '+' AS DELIMITERFROM DUAL

)CONNECT BY

INSTR(TOKEN, DELIMITER, 1, LEVEL)>0&_IF_ORA9 )

ORDER BYLEVEL ASC

) loopl_output_line := l_output_line || ' | ' ||

case s.token-- actual column names in v$session

when 'sid' then lpad(o_sid, w_sid , ' ')when 'username' then rpad(o_username

, w_username , ' ')when 'machine' then rpad(o_machine

, w_machine , ' ')when 'terminal' then rpad(o_terminal

, w_terminal , ' ')when 'program' then rpad(o_program

, w_program , ' ')when 'event' then rpad(o_event

, w_event , ' ')when 'wait_class' then rpad(o_wait_class

, w_wait_class , ' ')when 'state' then rpad(o_state, w_state , ' ')

when 'p1' then rpad(o_p1, w_p1 , ' ')



when 'row_wait_obj#' then rpad(o_row_wait_obj# , w_row_wait_obj# , ' ')

when 'row_wait_file#' then rpad(o_row_wait_file# , w_row_wait_file# , ' ')

when 'row_wait_block#' then rpad(o_row_wait_block# , w_row_wait_block# , ' ')when 'row_wait_row#' then rpad(o_row_wait_r

ow# , w_row_wait_row# , ' ')when 'blocking_session_status' then rpad(o_blocking_s

ession_status , w_blocking_session_status , ' ')when 'blocking_instance' then rpad(o_blocking_i

nstance , w_blocking_instance , ' ')when 'blocking_session' then rpad(o_blocking_s

ession , w_blocking_session , ' ')


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when 'sql_hash_value' then rpad(o_sql_hash_value , w_sql_hash_value , ' ')

when 'sql_id' then rpad(o_sql_id, w_sql_id , ' ')

when 'sql_child_number' then rpad(o_sql_child_number , w_sql_child_number , ' ')

when 'plsql_entry_object_id' then rpad(o_plsql_entry_object_id , w_plsql_entry_object_id , ' ')

when 'plsql_entry_subprogram_id' then rpad(o_plsql_entry_subprogram_id , w_plsql_entry_subprogram_id, ' ')

when 'plsql_object_id' then rpad(o_plsql_object_id , w_plsql_object_id , ' ')

when 'plsql_subprogram_id' then rpad(o_plsql_subprogram_id , w_plsql_subprogram_id , ' ')

when 'module' then rpad(o_module, w_module , ' ')

when 'action' then rpad(o_action, w_action , ' ')

when 'client_identifier' then rpad(o_client_identifier , w_client_identifier , ' ')

when 'service_name' then rpad(o_service_name , w_service_name , ' ')

-- aliases for convenience (only either real name or aliasshould be used together at the same time)

when 'user' then rpad(o_username, w_username , ' ')when 'obj' then rpad(o_row_wait_o

bj# , w_row_wait_obj# , ' ')when 'file' then rpad(o_row_wait_f

ile# , w_row_wait_file# , ' ')when 'block' then rpad(o_row_wait_b

lock# , w_row_wait_block# , ' ')when 'row' then rpad(o_row_wait_r

ow# , w_row_wait_row# , ' ')when 'bss' then rpad(o_blocking_s

ession_status , w_blocking_session_status , ' ')when 'bsi' then rpad(o_blocking_i

nstance , w_blocking_instance , ' ')when 'bs' then rpad(o_blocking_session , w_blocking_session , ' ')

when 'sql' then rpad(o_sql_hash_value , w_sql_hash_value , ' ')

when 'sqlid' then rpad(o_sql_id, w_sql_id , ' ')

when 'child' then rpad(o_sql_child_number , w_sql_child_number , ' ')

when 'plsql_eoid' then rpad(o_plsql_entry_object_id , w_plsql_entry_object_id , ' ')

when 'plsql_esubpid' then rpad(o_plsql_entry_subprogram_id , w_plsql_entry_subprogram_id, ' ')

when 'plsql_oid' then rpad(o_plsql_object_id , w_plsql_object_id , ' ')when 'plsql_subpid' then rpad(o_plsql_subp

rogram_id , w_plsql_subprogram_id , ' ')when 'mod' then rpad(o_module

, w_module , ' ')when 'act' then rpad(o_action

, w_action , ' ')when 'cid' then rpad(o_client_ide

ntifier , w_client_identifier , ' ')


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when 'service' then rpad(o_service_name , w_service_name , ' ')

when 'wait_event' then rpad(o_event, w_event , ' ')

when 'wait_state' then rpad(o_state, w_state , ' ')else

''end; -- case s.token

end loop; -- ash parameter tokenizer

output(l_output_line);

end loop; -- grouped ash samples

end out_ash;

-- and it begins!!!begin

-- get snappers own sid into g_mysidselect sid into g_mysid from v$mystat where rownum = 1;

pagesize := nvl( getopt('&snapper_options', 'pagesize=' ), pagesize);--output ( 'Pagesize='||pagesize );

lv_ash := getopt('&snapper_options', 'ash');lv_stats := getopt('&snapper_options', 'stat');

if lv_ash is not null then gather_ash := 1; end if;if lv_stats is not null then gather_stats := 1; end if;

--output('all='||case when getopt('&snapper_options', 'all') = chr(0) then 'chr(0)' when getopt('&snapper_options', 'all') is null then 'null' else (getopt('&snapper_options','all')) end);

-- some additional default value logicif getopt('&snapper_options', 'all') is not null then--output('setting stats to all due to option = all');gather_stats := 1;gather_ash := 1;

elseif (lv_ash is null and lv_stats is null) then

gather_stats := 0;gather_ash := 1;

end if;end if;

-- determine which performance counters and stats to collect

lv_gather := case nvl( lower(getopt ('&snapper_options', 'gather=')), 'stw')when 'all' then 'stw'else nvl( lower(getopt ('&snapper_options', 'gather=')), 'st

w')end;

--lv_gather:=getopt ('&snapper_options', 'gather=');--output('lv_gather='||lv_gather);


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if pagesize > 0 thenoutput(' ');output('-- Session Snapper v3.63 by Tanel Poder ( http://blog.tanelpoder

.com )');output(' ');

end if;

-- initialize statistic and event name array-- fetch statistic names with their adjusted IDsselect *bulk collect into sn_tmpfrom (

select 'STAT' stype, statistic# - pls_adjust statistic#, name

from v$statnamewhere (lv_gather like '%s%' or lv_gather like '

%a%')--union allselect 'WAIT',

event# + (select count(*) from v$statname) + 1 - pls_adjust, name

from v$event_name

where (lv_gather like '%w%' or lv_gather like '%a%')--

&_IF_ORA10_OR_HIGHER union all&_IF_ORA10_OR_HIGHER select 'TIME' stype, stat_id - pls_adjust stati

stic#, stat_name name&_IF_ORA10_OR_HIGHER from v$sys_time_model&_IF_ORA10_OR_HIGHER where (lv_gather like '%t%' or lv_gather like '

%a%')--union allselect 'LATG',

l.latch# +

(select count(*) from v$statname) +(select count(*) from v$event_name) +1 - pls_adjust statistic#,

namefrom v$latch lwhere (lv_gather like '%l%' or lv_gather like '

%a%')--

&_IF_X_ACCESSIBLE union all&_IF_X_ACCESSIBLE select 'BUFG',&_IF_X_ACCESSIBLE indx +&_IF_X_ACCESSIBLE (select count(*) from v$statname) +&_IF_X_ACCESSIBLE (select count(*) from v$event_name) +

&_IF_X_ACCESSIBLE (select count(*) from v$latch) +&_IF_X_ACCESSIBLE 1 - pls_adjust statistic#,&_IF_X_ACCESSIBLE kcbwhdes name&_IF_X_ACCESSIBLE from x$kcbwh&_IF_X_ACCESSIBLE where (lv_gather like '%b%' or lv_gather like

'%a%')--union allselect 'ENQG',

ascii(substr(e.eq_type,1,1))*256 + ascii(


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substr(e.eq_type,2,1)) +(select count(*) from v$statname) +(select count(*) from v$event_name) +(select count(*) from v$latch) +

&_IF_X_ACCESSIBLE (select count(*) from x$kcbwh) +1 - pls_adjust statistic#,eq_type

from (select es.eq_type

&_IF_ORA10_OR_HIGHER ||' - '||lt.nameeq_type,total_req#

fromv$enqueue_stat es

&_IF_ORA10_OR_HIGHER , v$lock_type lt&_IF_ORA10_OR_HIGHER where es.eq_type = lt.type

) ewhere (lv_gather like '%e%' or lv_gather like '

%a%')) snapper_statnamesorder by stype, statistic#;

-- store these into an index_by array organized by statistic# for fast lookup

--output('sn_tmp.count='||sn_tmp.count);--output('lv_gather='||lv_gather);for i in 1..sn_tmp.count loop-- output('i='||i||' statistic#='||sn_tmp(i).statistic#);

sn(sn_tmp(i).statistic#) := sn_tmp(i);end loop;

-- main sampling loopfor c in 1..&snapper_count loop

-- sesstat and other performance counter samplingif gather_stats = 1 then

-- print header if requiredgv_header_string :=

CASE WHEN output_header = 1 THEN 'HEAD,'END

|| CASE WHEN output_sid = 1 THEN ' SID,'END

|| CASE WHEN output_username = 1 THEN ' USERNAME ,'END

|| CASE WHEN output_time = 1 THEN ' SNAPSHOT START ,' END

|| CASE WHEN output_seconds = 1 THEN ' SECONDS,'END

|| CASE WHEN output_stype = 1 THEN ' TYPE,'END|| CASE WHEN output_sname = 1 THEN rpad(' STATISTIC',59

,' ')||',' END|| CASE WHEN output_delta = 1 THEN ' DELTA,'

END|| CASE WHEN output_delta_s = 1 THEN ' DELTA/SEC,'

END|| CASE WHEN output_hdelta = 1 THEN ' HDELTA,'

END


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|| CASE WHEN ou

Snapper.sql

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Transcript of Snapper.sql