Skip to content
pvmehta.com

pvmehta.com

  • Home
  • About Me
  • Toggle search form
  • Temporary Tablespace Information and restriction. Oracle
  • How to find where datafile is created dbf_info.sql Oracle
  • find_string_in_database.sql Oracle
  • Good notes on Oracle Events Oracle
  • DBMS_UTILITY PACKAGE Oracle
  • oracle_env_10g_CADEV Linux/Unix
  • Validating ORACLE_SID againt oratab file. Linux/Unix
  • cache buffer chain latch Oracle
  • PHP code to add WordPress posts in bulk programmatically PHP/MYSQL/Wordpress
  • Trace a SQL session from another session using ORADEBUG Oracle
  • To seee semaphores and shared memory segments in Solaris Linux/Unix
  • 10g oem configuration Oracle
  • Process Map for CPU and Memory for OS processes Linux/Unix
  • All Hints for Oracle Databases Oracle
  • Standby Database Behavior when a Datafile is Resized on the Primary Database Note:123883.1 Oracle

How to change hostname in Linux

Posted on 09-Apr-2008 By Admin No Comments on How to change hostname in Linux

=> Edit file /etc/sysconfig/network using your favourite editor. => Look for HOSTNAME=xxxxxx => Change the xxxx to the name you wish to set for your computer. (ex: HOSTNAME=techiecorner.com) => Save the file and restart the server.

Linux/Unix, shell

good linux notes

Posted on 09-Apr-2008 By Admin No Comments on good linux notes

http://tldp.org/HOWTO/Partition/intro.html

Linux/Unix, shell

ORA-8031 issue and solution if it is occuring due to truncate.

Posted on 07-Apr-2008 By Admin No Comments on ORA-8031 issue and solution if it is occuring due to truncate.

After doing further research on Oracle errors from metalink, I found following for ORA-8031. CAUSE: The data_object_id (seg/obj) stored in the block is different than the data_object_id stored in the segment header. EXPLAINATION: The expected behavior can be that tables are being truncated while a query from those tables is still in execution. Look if…

Read More “ORA-8031 issue and solution if it is occuring due to truncate.” »

Oracle, SQL scripts

fdisk -l explaination about Primary-Logical-Extended Partitions

Posted on 06-Apr-2008 By Admin No Comments on fdisk -l explaination about Primary-Logical-Extended Partitions

# fdisk -l Disk /dev/hda: 240 heads, 63 sectors, 1940 cylinders Units = cylinders of 15120 * 512 bytes Device Boot Start End Blocks Id System /dev/hda 1 286 2162128+ c Win95 FAT32 (LBA) /dev/hda2 * 288 1940 12496680 5 Extended /dev/hda5 288 289 15088+ 83 Linux /dev/hda6 290 844 4195768+ 83 Linux /dev/hda7 845…

Read More “fdisk -l explaination about Primary-Logical-Extended Partitions” »

Linux/Unix, shell

Drop database in Oracle 10g

Posted on 04-Apr-2008 By Admin No Comments on Drop database in Oracle 10g

Dropping a Database in 10G Consists of the following steps. echo $ORACLE_SID sqlplus “/as sysdba” SQL> startup nomount; ORACLE instance started. Total System Global Area 1077936128 bytes Fixed Size 2034344 bytes Variable Size 427824472 bytes Database Buffers 633339904 bytes Redo Buffers 14737408 bytes SQL> alter database mount exclusive; Database altered. SQL> alter system enable restricted…

Read More “Drop database in Oracle 10g” »

Oracle, SQL scripts

find the files that are 1 day old.

Posted on 15-Feb-2008 By Admin No Comments on find the files that are 1 day old.

find . -name “*” -type f -mtime -1 -exec ls -rlt {} ;

Linux/Unix, shell

Remove duplicate rows from table

Posted on 15-Jan-2008 By Admin No Comments on Remove duplicate rows from table

declare cursor c1 is select distinct PRODUCT_SKU, FIT_ID from geo_florist order by PRODUCT_SKU, FIT_ID; begin for cur1 in c1 loop delete from geo_florist a where a.rowid != ( select max(b.rowid) from geo_florist b where a.product_sku = b.product_sku and a.fit_id = b.fit_id) and a.product_sku = cur1.product_sku and a.fit_id = cur1.fit_id; if (mod(c1%rowcount, 1000) = 0) then…

Read More “Remove duplicate rows from table” »

Oracle, SQL scripts

on IBM-AIX for display

Posted on 08-Jan-2008 By Admin No Comments on on IBM-AIX for display

On IBM-AIX, vi was not working properly. Then set the environment variable as following and it started working. ( Thanks Magesh for same). $ export TERM=vt100 $

Linux/Unix, shell

Unix split command to split files

Posted on 28-Dec-2007 By Admin No Comments on Unix split command to split files

split -20 source_filename.lst test1 Above command will split source_filename.lst with every 20 lines. Will create files with 20 lines and with following names. -rw-r–r– 1 oracle dba 41 Dec 28 11:53 test1ag -rw-r–r– 1 oracle dba 2127 Dec 28 11:53 test1af -rw-r–r– 1 oracle dba 2240 Dec 28 11:53 test1ae -rw-r–r– 1 oracle dba 2243…

Read More “Unix split command to split files” »

Linux/Unix, shell

to see when crontab is changed.

Posted on 19-Dec-2007 By Admin No Comments on to see when crontab is changed.

sunflower1/800P>ls -rlt /var/spool/cron/crontabs total 138 -r——– 1 root root 452 Jan 21 2005 lp -rw——- 1 root sys 308 Nov 9 2006 sys -rw——- 1 root sys 317 Aug 20 18:51 adm -rw——- 1 root staff 5605 Oct 9 10:09 bbxuser -rw——- 1 root staff 5126 Oct 9 10:13 bkgr -rw——- 1 root staff 457…

Read More “to see when crontab is changed.” »

Linux/Unix, shell

Posts pagination

Previous 1 … 27 28 29 … 59 Next

Categories

  • AMC10 (0)
  • 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 (9)
  • Videos (0)

Recent Posts

  • Tutornet.US — Source of excellent learning14-Oct-2026
  • OCI Infrastructure Patching14-Oct-2026
  • Free API credits for AI models14-Oct-2026
  • AMC1020-Sep-2026
  • 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

Archives

  • 2026
  • 2025
  • 2024
  • 2023
  • 2010
  • 2009
  • 2008
  • 2007
  • 2006
  • 2005
  • When error comes for temporary tablespace with version <= 9i Oracle
  • Finding last recovered file on DR and remove all chanracters before any “/” Linux/Unix
  • Committing distributed transaction using commit force Oracle
  • adding new line after specific pattern using sed Linux/Unix
  • sesswait.sql Oracle
  • Day to day MYSQL DBA operations (Compared with Oracle DBA) MYSQL
  • Oracle Connections expire_time and firewall Oracle
  • refre.sql for multitenant Oracle

Copyright © 2026 pvmehta.com.

Powered by PressBook News WordPress theme