Skip to content
pvmehta.com

pvmehta.com

  • Home
  • About Me
  • Toggle search form
  • Facts about SCN and Rollback Segment Oracle
  • Roles and Stored Procs II Oracle
  • Wait Based Tuning Step by step with SQL statement Oracle
  • Btee and Bitmap Plans in Oracle 9i and higher Oracle
  • move_arch_files.ksh Linux/Unix
  • 556976.1 Oracle Clusterware: Components installed Oracle
  • Error Handling in Proc Oracle
  • process id based files and processes Linux/Unix
  • Creating a Container Database using dbaascli Uncategorized
  • Convert multiple rows to single column Oracle
  • sql_doing_fts.sql Oracle
  • Gathering statistics with DBMS_STATS Oracle
  • DBMS_JOB all example Oracle
  • Remove duplicate rows from table Oracle
  • Good Doc 28-JUN-2006 Oracle

Author: Admin

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

How to analyze statspack or AWR report.

Posted on 14-Dec-2007 By Admin No Comments on How to analyze statspack or AWR report.

http://oraperf.sourceforge.net/seminar/sevt_anal.html A typical waits event section of a report.txt looks like SQLDBA> Rem System wide wait events. SQLDBA> select n1.event “Event Name”, 2> n1.event_count “Count”, 3> n1.time_waited “Total Time”, 4> (n1.time_waited/n1.event_count) “Average Time” 5> from stats$event n1 6> where n1.event_count > 0 7> order by n1.time_waited desc; Event Name Count Total Time Average Time —————————…

Read More “How to analyze statspack or AWR report.” »

Oracle, SQL scripts

v$event_name

Posted on 14-Dec-2007 By Admin No Comments on v$event_name

v$event_name ——————————————————————————– select EVENT# NU,NAME,PARAMETER1 P1,PARAMETER2 P2,PARAMETER3 P3 from v$event_name; EVENT# NAME PARAMETER1 PARAMETER2 PARAMETER3 —- —————————————- ——————– —————– ————- 0 Null event 1 latch activity address number process# 2 latch free address number tries 3 free process state object 4 pmon timer duration 5 inactive session session# waited 6 process startup type process# waited…

Read More “v$event_name” »

Oracle, SQL scripts

Good notes for shared pool

Posted on 14-Dec-2007 By Admin No Comments on Good notes for shared pool

Understanding and Tuning the Shared Pool Doc ID: Note:62143.1

Oracle, SQL scripts

Posts pagination

Previous 1 … 26 27 28 … 58 Next

Categories

  • Ansible (0)
  • AWS (2)
  • Azure (1)
  • Django (0)
  • GIT (1)
  • Linux/Unix (149)
  • MYSQL (5)
  • Oracle (402)
  • PHP/MYSQL/Wordpress (10)
  • POSTGRESQL (1)
  • Power-BI (0)
  • Python/PySpark (7)
  • RAC (18)
  • rman-dataguard (26)
  • shell (150)
  • SQL scripts (350)
  • SQL Server (6)
  • Uncategorized (5)
  • Videos (0)

Recent Posts

  • 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.sql23-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
  • Creating a Container Database using dbaascli08-Apr-2026

Archives

  • 2026
  • 2025
  • 2024
  • 2023
  • 2010
  • 2009
  • 2008
  • 2007
  • 2006
  • 2005
  • Settting up get_vmstat.sh for colletinf CPU Usage. Oracle
  • find the files that are 1 day old. Linux/Unix
  • MYSQL for Oracle DBA MYSQL
  • How to change hostname in Linux Linux/Unix
  • Alter procedure auditing Oracle
  • Establishing trusted relationship between dbmonitor( central monitoring) and monitoring targets. Linux/Unix
  • Remove DOS CR/LFs (^M) Linux/Unix
  • How does one SELECT a value from a table into a Unix variable? From SQL to Shell Linux/Unix

Copyright © 2026 pvmehta.com.

Powered by PressBook News WordPress theme