Show latent parameter changes Analyzing Modified Oracle Database Parameters for Insights and Optimization Uncover configuration customizations, potential performance bottlenecks, and security considerations by examining modified initialization parameters in Oracle Database. SQL Code 1select name 2, value 3from …

Show non-default parameters in the table v$parameter Show non-default parameters in the table v$parameter SQL Code 1set pages 999 lines 100 2col name format a30 3col value format a50 4select name 5, value 6from v$parameter 7where isdefault = 'FALSE' 8and value is not null 9order by name 10/ Sample Oracle Output 1no …

List all open oracle cursors by user or username Track open cursor usage across user sessions to identify potential resource constraints or inefficiencies in database access patterns SQL Code 1set pages 999 lines 300 2col username format a40 3select sess.username as username 4, sess.sid as sid 5, sess.serial# as serial …

Reset or unset a Oracle parameter in the spfile Setting a parameter to = ' ' often isn't enough. Do this instead. The sid='' bit is always necessary, even in non-RAC databases. SQL Code 1alter system reset <parameter> scope=spfile sid='' 2/ Sample Oracle Output 1no rows selected 2SQL> Purpose: To reset a specified …

Display Session status associated with the specified os process id SQL Code 1select s.username 2, s.sid 3, s.serial# 4, p.spid 5, last_call_et 6, status 7from V$SESSION s 8, V$PROCESS p 9where s.PADDR = p.ADDR 10and p.spid='&pid' 11/ Sample Oracle Output 1Enter value for pid: 9999 2old 10: and p.spid='&pid' 3new 10: …

Display the users current Session SQL SQL Code 1Select sql_text 2from v$sqlarea 3where (address, hash_value) in 4(select sql_address, sql_hash_value 5 from v$session 6 where username like '&username') 7/ Sample Oracle Output 1Enter value for username: sys 2old 6: where username like '&username') 3new 6: where username …

Select Oracle user info including os pid SQL Code 1col "SID/SERIAL" format a10 2col username format a20 3col osuser format a15 4col program format a50 5select s.sid || ',' || s.serial# "SID/SERIAL" 6, s.username 7, s.osuser 8, p.spid "OS PID" 9, s.program 10from v$session s 11, v$process p 12Where s.paddr = p.addr …

Show all the Oracle database used or installed Oracle features using dba_feature_usage_statistics Discover which database features have been actively used, providing insights for license management, optimization, and future planning. Show all the Oracle database installed features for an instance SQL Code 1select name …

Oracle sessions sorted by logon time Track idle time for user sessions to uncover potential resource leaks, optimize database performance, and maintain security best practices. SQL Code 1et lines 100 pages 999 2select username 3, floor(last_call_et / 60) "Minutes" 4, status 5from v$session 6where username is not null …

Display all Oracle users by the time since last user activity Identify idle user sessions and their inactive duration for resource optimization, performance tuning, and security best practices. SQL Code 1set lines 100 pages 999 2select username 3, floor(last_call_et / 60) "Minutes" 4, status 5from v$session 6where …