List all the Oracle Users Account Information for the Oracle Database using dba_users A detailed overview of user accounts in the Oracle database, including their status, creation date, tablespaces, and more SQL Code 1set pages 999 lines 100 2col username format a20 3col status format a8 4col tablespace format a20 5col …
Read MoreLock or Unlock an Oracle User in the Database A brief guide on locking user accounts using the alter user <username> account lock; command, including its purpose, key points, and best practices. Lock User SQL Code 1alter user <username> account lock; 2/ Unlock User SQL Code 1alter user <username> account unlock; 2/ …
Read MoreShow all Active SQL for Sessions using v$session and v$sqlarea Gain real-time insights into currently active user sessions and the SQL statements they are executing to troubleshoot performance issues and optimize resources SQL Code 1set feedback off 2set serveroutput on size 9999 3column username format a20 4column …
Read MoreDisplay Oracle v$session_longops sessions Gain visibility into recently completed long-running operations for monitoring performance and resource usage SQL Code 1set lines 100 pages 999 2col username format a15 3col message format a40 4col remaining format 9999 5select username 6, to_char(start_time, 'hh24:mi:ss …
Read MoreDisplay the Oracle database chararter set information Explore language and locale configurations that shape data interpretation and presentation for globalized applications and accurate data handling. SQL Code 1select * from nls_database_parameters 2/ Sample Oracle Output 11 22SQL> Purpose: To retrieve and display all …
Read MoreShow latent parameter changes Analyzing Modified Oracle Database Parameters for Insights and Optimization Uncover configuration customizations, potential performance bottlenecks, and security considerations by examining modified initialization parameters in Oracle Database. SQL Code 1select name 2, value 3from …
Read MoreShow non-default parameters in the table v$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 …
Read MoreList 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 …
Read MoreReset 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 …
Read MoreDisplay 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: …
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