update : 25-06-2017

DBA Script : perf_shared_pool_memory.sql

-- | FILE : perf_shared_pool_memory.sql |
-- +----------------------------------------------------------------------------+
-- | |
-- | |
-- | www.high-oracle.com |
-- |----------------------------------------------------------------------------|
-- | www.high-oracle.com |
-- |----------------------------------------------------------------------------|
-- | DATABASE : Oracle |
-- | FILE : perf_shared_pool_memory.sql |
-- | CLASS : Tuning |
-- | PURPOSE : Query the total memory in the Shared Pool and the amount of |
-- | free memory. |
-- | 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
COLUMN value FORMAT 999,999,999,999 HEADING "Shared Pool Size"
COLUMN bytes FORMAT 999,999,999,999 HEADING "Free Bytes"
COLUMN percentfree FORMAT 999 HEADING "Percent Free"
SELECT
TO_NUMBER(p.value) value
, s.bytes bytes
, (s.bytes/p.value) * 100 percentfree
FROM
v$sgastat s
, v$parameter p
WHERE
s.name = 'free memory'
AND s.pool = 'shared pool'
AND p.name = 'shared_pool_size'
/

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.