Skip to content
pvmehta.com

pvmehta.com

  • Home
  • About Me
  • Toggle search form
  • oracle 10g on linux Linux/Unix
  • How to calculate PROCESSES parameter Oracle
  • SQL Server: How to see current transactions or requests SQL Server
  • USER_TABLES.Freelists Oracle
  • Free conference number from http://www.freeconference.com Oracle
  • Oracle vs MYSQL Architecture differences (For DBAs) MYSQL
  • Implementing Listener Security Oracle
  • My Test Case On 21-OCT-2005 Oracle
  • SQL_PLAN.sql for checking real execution plan Oracle
  • Privileges Required to Create Procedures and Functions that uses objects from other schema. Oracle
  • Which environment is used by currently running process ( Very good) Linux/Unix
  • TABLE SIZING WITH DB_BLOCK ARCHITECTURE Reference : Metalink note : 10640.1 Oracle
  • TOP-N Sql to find Nth max or Top N rows Oracle
  • Difference between SYNC and AFFIRM Oracle
  • pvm_pre_change.sql Oracle

Category: shell

Nice Article about semaphores and init.ora Processes parameter relations

Posted on 19-Nov-2008 By Admin No Comments on Nice Article about semaphores and init.ora Processes parameter relations

metalink note: 15566.1 PURPOSE Shared memory and semaphores are two important resources for an Oracle instance on Unix. An instance cannot start if it is unable to allocate what it needs. This paper primarily discusses the process Oracle goes through to allocate shared memory and semaphores at instance startup. Other important points unrelated to startup…

Read More “Nice Article about semaphores and init.ora Processes parameter relations” »

Linux/Unix, shell

default permission on ~/.ssh/authorized_keys2 or authorized_keys

Posted on 03-Nov-2008 By Admin No Comments on default permission on ~/.ssh/authorized_keys2 or authorized_keys

The permission on this file must be 600. else even after changing the authorized keys you will be asked for password authentications.

Linux/Unix, shell

Establishing trusted relationship between dbmonitor( central monitoring) and monitoring targets.

Posted on 16-Sep-2008 By Admin No Comments on Establishing trusted relationship between dbmonitor( central monitoring) and monitoring targets.

[1] We have logserver as existing central monitoring server. [2] need to establish other monitoring server same as logserver. [3] so login as oracle copy ~/.ssh from logserver1 to dbmonitor. on dbmonitor: cd .ssh cat id_dsa.pub id_rsa.pub > both_keys then do the following for target servers. pls note that where ssh2 is installed the file…

Read More “Establishing trusted relationship between dbmonitor( central monitoring) and monitoring targets.” »

Linux/Unix, shell

Finding last recovered file on DR and remove all chanracters before any “/”

Posted on 08-Sep-2008 By Admin No Comments on Finding last recovered file on DR and remove all chanracters before any “/”

sunflower1/800P>ssh sunlight1 “grep “Media ” /EMCdb19/oracle/800L/bdump/alert_800L.log| grep -v grep | grep “arch” | tail -1 ” Media Recovery Log /EMCdb16/archlog/800P/arch0000296866.arc sunflower1/800P> sunflower1/800P>ssh sunlight1 “grep “Media ” /EMCdb19/oracle/800L/bdump/alert_800L.log| grep -v grep | grep “arch” | tail -1 | sed -e s#^.*/##” arch0000296866.arc sunflower1/800P>

Linux/Unix, shell

replace alphabets using sed

Posted on 28-Aug-2008 By Admin No Comments on replace alphabets using sed

Following will replace anything except numeric digits. sunflower1/800P>echo /db15/archlogbak/800P/arch0000295711.arc | awk -F”/” ‘{print $NF}’ | sed -e ‘s|[^0-9]||g’ 0000295711

Linux/Unix, shell

Reading parameter file and printing

Posted on 01-Aug-2008 By Admin No Comments on Reading parameter file and printing

#/bin/ksh -x for myread in `cat /export/home/oracle/scripts/check_recovery.par` do TARGET_SID=`echo $myread | awk -F”,” ‘{print $1}’` SOURCE_SSH=`echo $myread | awk -F”,” ‘{print $2}’` SOURCE_HOST=`echo $myread | awk -F”,” ‘{print $3}’` SOURCE_ENVFILE=`echo $myread | awk -F”,” ‘{print $4}’` SOURCE_ORACLE_HOME=`echo $myread | awk -F”,” ‘{print $5}’` TARGET_SSH=`echo $myread | awk -F”,” ‘{print $6}’` TARGET_HOST=`echo $myread | awk -F”,”…

Read More “Reading parameter file and printing” »

Linux/Unix, shell

checking connectivity between two servers

Posted on 29-Jul-2008 By Admin No Comments on checking connectivity between two servers

LASTFILE=`${PRDCMODE} ${PRDHOST} “ls -latr ${PRDARCH}/*.arc” |nawk ‘{print $9}’|tail -1|sed ‘s/[A-Za-z/. ]//g’|sed ‘s/^0*/ /g’` if [ $? != 0 ];then print “${STB1SID}: ${ALIAS} Standby on ${STB1HOST} – CRITICAL ERROR” >> ${NOTOKLOG} 2>/dev/null exit 50 fi

Linux/Unix, shell

Find long Running Transaction

Posted on 28-Jul-2008 By Admin No Comments on Find long Running Transaction

+++++++++++++longtx_12HR.sh #!/bin/sh . /opt/app/oracle/oracle_env NOTIFY_LIST=dbaoracle@1800flowers.com $ORACLE_HOME/bin/sqlplus -s “/ as sysdba” @/opt/app/oracle/scripts/longtx_12HR.sql if [ `cat /opt/app/oracle/scripts/log/long_transaction_list.lst | grep -i “*****ATLAS NOTIFICATION REQUIRED*****” | wc -l` -n e 0 ]; then mailx -s “LONG RUNNING TRANSACTION ON ATLAS `hostname` on `date` ” $NOTIFY_LIST < /opt/app/oracle/scripts/log/long_transactio n_list.lst fi +++++++++++++longtx_12HR.sql set lines 120 pages 300 set serveroutput on exec...

Read More “Find long Running Transaction” »

Linux/Unix, shell

Check_recovery.sh program to run sqlplus and return its values remotely.

Posted on 21-Jul-2008 By Admin No Comments on Check_recovery.sh program to run sqlplus and return its values remotely.

#/bin/ksh -x NOTIFY_LIST=”pmehta@1800flowers.com” SOURCE_ARCH_DEST=/db5/archlog/800P TARGET_SID=UOC SOURCE_SSH=/usr/local/bin/ssh TARGET_SSH=/usr/local/bin/ssh SOURCE_HOST=nyuocdbprod01s TARGET_HOST=uocdbprod21 TARGET_ORACLE_HOME=/oracle/app/oracle/product/10.1 TARGET_ENVFILE=/oracle/app/oracle/oraprocs/oracle_env_UOC SOURCE_ORACLE_HOME=/oracle/app/oracle/product/10.1 SOURCE_ENVFILE=/export/home/oracle/oraprocs/oracle_env_10g_UOC MY_SQL=”select max(SEQUENCE#) from v$log_history;” MY_SQL1=”select count(1) from v$log_history where first_time >= (sysdate – (45/1440));” TARGET_SEQ=`$TARGET_SSH $TARGET_HOST “. $TARGET_ENVFILE; $TARGET_ORACLE_HOME/bin/sqlplus -S / as sysdba

Linux/Unix, shell

Running select from V$ views from remote server

Posted on 21-Jul-2008 By Admin No Comments on Running select from V$ views from remote server

#/bin/ksh -x NOTIFY_LIST=”pmehta@1800flowers.com” CONNECT_USER=”/ as sysdba” TARGET_ORACLE_HOME=/oracle/app/oracle/product/10.1 MY_SQL=”select max(SEQUENCE#) from v$log_history;” RUNNING=`/usr/local/bin/ssh uocdbprod21 “. /oracle/app/oracle/oraprocs/oracle_env_UOC; $TARGET_ORACLE_HOME/bin/sqlplus -S / a s sysdba

Linux/Unix, shell

Posts pagination

Previous 1 … 4 5 6 … 16 Next

Categories

  • Ansible (0)
  • AWS (2)
  • Azure (1)
  • Django (0)
  • GIT (1)
  • Linux/Unix (150)
  • MYSQL (5)
  • Oracle (403)
  • PHP/MYSQL/Wordpress (10)
  • POSTGRESQL (1)
  • Power-BI (0)
  • Python/PySpark (7)
  • RAC (18)
  • rman-dataguard (26)
  • shell (151)
  • SQL scripts (349)
  • SQL Server (6)
  • Uncategorized (5)
  • Videos (0)

Recent Posts

  • Key Management in Oracle: The Core Issue: Missing Master Key12-May-2026
  • SAT Mathematics 10 questions and answer at the end.30-Apr-2026
  • top 10 AI news today30-Apr-2026
  • runon_allpdbs_show_conname.sh23-Apr-2026
  • runon_allcdbs_find_pdbs.sh23-Apr-2026
  • Running PDB on single node in RAC09-Apr-2026
  • find_arc.sql09-Apr-2026
  • pvm_pre_change.sql08-Apr-2026
  • find_encr_wallet.sql08-Apr-2026
  • find_pdbs.sql08-Apr-2026

Archives

  • 2026
  • 2025
  • 2024
  • 2023
  • 2010
  • 2009
  • 2008
  • 2007
  • 2006
  • 2005
  • CTAS with LONG Column for 7.x and 8 and 8i Oracle
  • login.sql Oracle
  • catting.sh Linux/Unix
  • findobj.sql Oracle
  • OEM-Commnds Oracle
  • fkwoindex.sql /* Find FK without Index */ Oracle
  • Move WordPress site from one hosting service to other. PHP/MYSQL/Wordpress
  • Kernel Parameter setting explaination for Processes Parameter Linux/Unix

Copyright © 2026 pvmehta.com.

Powered by PressBook News WordPress theme