update : 27-04-2017

DBA Script : sess_users_by_io.sql

-- | FILE : sess_users_by_io.sql |
-- +----------------------------------------------------------------------------+
-- | |
-- | |
-- | www.high-oracle.com |
-- |----------------------------------------------------------------------------|
-- | www.high-oracle.com |
-- |----------------------------------------------------------------------------|
-- | DATABASE : Oracle |
-- | FILE : sess_users_by_io.sql |
-- | CLASS : Session Management |
-- | PURPOSE : List all currently connected user sessions ordered by Logical |
-- | I/O. |
-- | NOTE : As with any code, ensure to test this script in a development |
-- | environment before attempting to run it in production. |
-- +----------------------------------------------------------------------------+
SET TERMOUT OFF;
COLUMN current_instance NEW_VALUE current_instance NOPRINT;
SELECT rpad(instance_name, 17) current_instance FROM v$instance;
SET TERMOUT ON;
PROMPT
PROMPT +------------------------------------------------------------------------+
PROMPT | Report : User Sessions Ordered by Logical I/O |
PROMPT | Instance : ¤t_instance |
PROMPT +------------------------------------------------------------------------+
SET ECHO OFF
SET FEEDBACK 6
SET HEADING ON
SET LINESIZE 180
SET PAGESIZE 50000
SET TERMOUT ON
SET TIMING OFF
SET TRIMOUT ON
SET TRIMSPOOL ON
SET VERIFY OFF
CLEAR COLUMNS
CLEAR BREAKS
CLEAR COMPUTES
COLUMN sid FORMAT 999999 HEADING 'SID'
COLUMN serial_id FORMAT 99999999 HEADING 'Serial ID'
COLUMN session_status FORMAT a9 HEADING 'Status'
COLUMN oracle_username FORMAT a12 HEADING 'Oracle User'
COLUMN os_username FORMAT a12 HEADING 'O/S User'
COLUMN os_pid FORMAT a8 HEADING 'O/S PID'
COLUMN session_machine FORMAT a25 HEADING 'Machine' TRUNC
COLUMN session_program FORMAT a40 HEADING 'Session Program' TRUNC
COLUMN logical_io FORMAT 999,999,999,999 HEADING 'Logical I/O'
COLUMN physical_reads FORMAT 999,999,999,999 HEADING 'Physical Reads'
COLUMN physical_writes FORMAT 999,999,999,999 HEADING 'Physical Writes'
SELECT
s.sid sid
, s.serial# serial_id
, s.status session_status
, s.username oracle_username
, s.osuser os_username
, p.spid os_pid
, s.machine session_machine
, s.program session_program
, sstat1.value
+ sstat2.value logical_io
, sstat3.value physical_reads
, sstat4.value physical_writes
FROM
v$process p
, v$session s
, v$sesstat sstat1
, v$sesstat sstat2
, v$sesstat sstat3
, v$sesstat sstat4
, v$statname statname1
, v$statname statname2
, v$statname statname3
, v$statname statname4
WHERE
p.addr (+) = s.paddr
AND s.sid = sstat1.sid
AND s.sid = sstat2.sid
AND s.sid = sstat3.sid
AND s.sid = sstat4.sid
AND statname1.statistic# = sstat1.statistic#
AND statname2.statistic# = sstat2.statistic#
AND statname3.statistic# = sstat3.statistic#
AND statname4.statistic# = sstat4.statistic#
AND statname1.name = 'db block gets'
AND statname2.name = 'consistent gets'
AND statname3.name = 'physical reads'
AND statname4.name = 'physical writes'
ORDER BY logical_io DESC
/

End Script

Oracle Database Error Messages



Oracle Database High Availability Any organization evaluating a database solution for enterprise data must also evaluate the High Availability (HA) capabilities of the database. Data is one of the most critical business assets of an organization. If this data is not available and/or not protected, companies may stand to lose millions of dollars in business downtime as well as negative publicity. Building a highly available data infrastructure is critical to the success of all organizations in today's fast moving economy.

Well, the reason for above error is that i have taken the above script from a 11g database and running it on 10g database. 11g has bring some changes in password management. Below code is executed on 11g and user created successfully, which is expected result.