update : 19-08-2017

DBA Script : perf_redo_log_contention.sql

-- | FILE : perf_redo_log_contention.sql |
-- +----------------------------------------------------------------------------+
-- | |
-- | |
-- | www.high-oracle.com |
-- |----------------------------------------------------------------------------|
-- | www.high-oracle.com |
-- |----------------------------------------------------------------------------|
-- | DATABASE : Oracle |
-- | FILE : perf_redo_log_contention.sql |
-- | CLASS : Tuning |
-- | PURPOSE : Report on overall redo log contention for the instance since |
-- | the instance was last started. |
-- | NOTE : As with any code, ensure to test this script in a development |
-- | environment before attempting to run it in production. |
-- +----------------------------------------------------------------------------+
SET LINESIZE 145
SET PAGESIZE 9999
SET VERIFY off
prompt
prompt =======================================
prompt Latches
prompt =======================================
prompt
COLUMN name FORMAT a30 HEADING 'Latch Name'
COLUMN gets FORMAT 999,999,999 HEADING 'Gets'
COLUMN misses FORMAT 999,999,999 HEADING 'Misses'
COLUMN sleeps FORMAT 999,999,999 HEADING 'Sleeps'
COLUMN immediate_gets FORMAT 999,999,999 HEADING 'Immediate Gets'
COLUMN immediate_misses FORMAT 999,999,999 HEADING 'Immediate Misses'
BREAK ON report
COMPUTE SUM OF gets ON report
COMPUTE SUM OF misses ON report
COMPUTE SUM OF sleeps ON report
COMPUTE SUM OF immediate_gets ON report
COMPUTE SUM OF immediate_misses ON report
SELECT
INITCAP(name) name
, gets
, misses
, sleeps
, immediate_gets
, immediate_misses
FROM sys.v_$latch
WHERE name LIKE 'redo%'
ORDER BY 1;
prompt
prompt =======================================
prompt System Statistics
prompt =======================================
prompt
COLUMN name FORMAT a30 HEADING 'Statistics Name'
COLUMN value FORMAT 999,999,999,999 HEADING 'Value'
SELECT
name
, value
FROM
v$sysstat
WHERE
name LIKE 'redo%';

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.