Skip to content
pvmehta.com

pvmehta.com

  • Home
  • About Me
  • Toggle search form
  • OPENING A STANDBY DATABASE IN READ-ONLY MODE Oracle
  • Sample WW22 listener.ora Oracle
  • Search and replace editor command in vi Linux/Unix
  • When to rebuld B-tree index Oracle
  • To Find Orphan OS processes. Linux/Unix
  • Temporary tablespace explaination Oracle
  • remove archfiles only when it is applied to DR rm_archfiles.sh Linux/Unix
  • For Perl DBI installation and testing program PHP/MYSQL/Wordpress
  • This is im telling Kishore Oracle
  • executing Function from SQLPLUS prompt Oracle
  • Oracle Standby Database Library Index from Metalink Oracle
  • New Latest Param.sql for finding all hidden parameters also Oracle
  • Explain Plan Output 2 Oracle
  • Another export with Query Oracle
  • Implementing Listener Security Oracle

Tag: undocumented parameter

ENQ: KO – FAST OBJECT CHECKPOINT tips

Posted on 25-May-202325-May-2023 By Admin No Comments on ENQ: KO – FAST OBJECT CHECKPOINT tips

On reporting queries, there are too many “enq: KO – fast object checkpoint” wait event. All reporting queries are doing full table scans concurrently. Oracle uses direct path reads instead of db file scattered reads. And direct path reads require a checkpoint “_serial_direct_read”=NEVER Parameter Session Value Instance Value ————————————————– —————————— —————————— _serial_direct_read auto auto

Oracle

Categories

  • AWS (2)
  • Azure (1)
  • Linux/Unix (149)
  • Oracle (392)
  • PHP/MYSQL/Wordpress (10)
  • Power-BI (0)
  • Python/PySpark (7)
  • RAC (17)
  • rman-dataguard (26)
  • shell (149)
  • SQL scripts (341)
  • Uncategorized (0)
  • Videos (0)

Recent Posts

  • load SPM baseline from cursor cache05-Jun-2025
  • Drop all SPM baselines for SQL handle05-Jun-2025
  • Load SPM baseline from AWR05-Jun-2025
  • Drop specific SQL plan baseline – spm05-Jun-2025
  • findinfo.sql (SQL for getting CPU and Active session info)27-May-2025
  • SQL Tracker by SID sqltrackerbysid.sql22-Apr-2025
  • How to connect to Oracle Database with Wallet with Python.21-Mar-2025
  • JSON/XML Types in Oracle18-Mar-2025
  • CPU Core related projections12-Mar-2025
  • Exadata Basics10-Dec-2024

Archives

  • 2025
  • 2024
  • 2023
  • 2010
  • 2009
  • 2008
  • 2007
  • 2006
  • 2005
  • Nice notes on wait events Oracle
  • fkwoind.sql fkwoindex.sql Oracle
  • send attachment from unix-shell script Linux/Unix
  • scripts to take listener.log backup Linux/Unix
  • Wait.sql Oracle
  • My Test Case On 21-OCT-2005 Oracle
  • To find explain plan for a statement that occurred in past. Oracle
  • remove archfiles only when it is applied to DR rm_archfiles.sh Linux/Unix

Copyright © 2025 pvmehta.com.

Powered by PressBook News WordPress theme