sqlhistory.txt - 墨天轮文档

sqlhistory.txt

weizhao.zhang （anbob）

6页

2次

2023-12-26

5墨值下载

/**********************************************************************

* File: sqlhistory.sql

* Type: SQL*Plus script

* Author: Tim Gorman (Evergreen Database Technologies, Inc.)

* Date: 1May2015

* Description:

* SQL*Plus script to query the "history" of a specified SQL

* statement, using its "SQL ID" across all database instances

* in a database, using the AWR repository. This report is useful

* for obtaining an hourly perspective on SQL statements seen in

* more aggregated reports.

* Modifications:

* TGorman 29sep08 adapted from the earlier STATSPACK-based

* "sphistory.sql" script

* Anbob 2015/5/1 add instance number indentify

* Anbob 07Api23 add more delta

* Call:

* @sqlhistory --request sql_id and days

*********************************************************************/

set echo off

set feedback off timing off verify off pagesize 100 linesize 300 recsep off

set serveroutput on size 1000000 format wrapped trimout on trimspool on

col phv heading "Plan|Hash Value"

col snap_time format a12 truncate heading "Snapshot|Time"

col execs format 999,990 heading "Execs"

col lio_per_exec format 999,999,990.00 heading "Avg LIO|Per Exec"

col rows_per_exec format 999,999,990.00 heading "Avg Rows|Per Exec"

col pio_per_exec format 999,999,990.00 heading "Avg PIO|Per Exec"

col cpu_per_exec format 999,999,990.00 heading "Avg|CPU (secs)|Per Exec"

col ela_per_exec format 999,999,990.00 heading "Avg|Elapsed (secs)|Per Exec"

col IOW_per_exec format 9,999,990.00 heading "Avg|IO(secs)|Per Exec"

col CLW_per_exec format 9,999,990.00 heading "Avg|Clus(secs)|Per Exec"

col AQW_per_exec format 9,999,990.00 heading "Avg|APP (secs)|Per Exec"

col CCW_per_exec format 9,999,990.00 heading "Avg|Conc(secs)|Per Exec"

col off_per_exec format 9,999,990.00 heading "Avg|Celoff(secs)|Per Exec"

col VERSION_COUNT format 999 "Ver|cnt"

col sql_text format a64 heading "Text of SQL statement"

col instance_number for 9999 heading "Inst"

clear breaks computes

ttitle off

btitle off

accept V_SQL_ID prompt "Enter the SQL_ID: "

accept V_NBR_DAYS prompt "Enter number of days (backwards from this hour) to

report (default: ALL): "

variable v_nbr_days number

spool sqlhistory_&&V_SQL_ID

declare

cursor get_phv(in_sql_id in varchar2, in_days in integer)

select ss.plan_hash_value,

min(s.begin_interval_time) min_time,

max(s.begin_interval_time) max_time,

min(s.snap_id) min_snap,

max(s.snap_id) max_snap,

sum(ss.executions_delta) sum_execs,

sum(ss.disk_reads_delta) sum_disk_reads,

sum(ss.buffer_gets_delta) sum_buffer_gets,

sum(ss.cpu_time_delta)/1000000 sum_cpu_time,

sum(ss.elapsed_time_delta)/1000000 sum_elapsed_time

from dba_hist_sqlstat ss,

dba_hist_snapshot s

where ss.dbid = s.dbid

and ss.instance_number = s.instance_number

and ss.snap_id = s.snap_id

and ss.sql_id = in_sql_id

and ss.executions_delta > 0

and s.begin_interval_time >= sysdate-in_days

group by ss.plan_hash_value

order by sum_elapsed_time desc;

cursor get_xplan(in_sql_id in varchar2, in_phv in number)

select plan_table_output

from table(dbms_xplan.display_awr(in_sql_id, in_phv, null, 'ALL

-ALIAS'));

v_prev_plan_hash_value number := -1;

v_text_lines number := 0;

v_errcontext varchar2(100);

v_errmsg varchar2(100);

v_display_sql_text boolean;

begin

v_errcontext := 'query NBR_DAYS from DUAL';

select

decode('&&V_NBR_DAYS','',10,to_number(nvl('&&V_NBR_DAYS','10')))

into :v_nbr_days

from dual;

v_errcontext := 'open/fetch get_phv';

for phv in get_phv('&&V_SQL_ID', :v_nbr_days) loop

if get_phv%rowcount = 1 then

dbms_output.put_line('+'||

rpad('-',12,'-')||

rpad('-',10,'-')||

rpad('-',12,'-')||

rpad('-',15,'-')||

rpad('-',12,'-')||

rpad('-',12,'-')||'+');

dbms_output.put_line('|'||

rpad('Plan HV',12,' ')||

rpad('Min Snap',10,' ')||

rpad('Max Snap',10,' ')||

rpad('Execs',12,' ')||

rpad('LIO',15,' ')||

rpad('PIO',15,' ')||

rpad('CPU',12,' ')||

rpad('Elapsed',12,' ')||'|');