Skip to content
pvmehta.com

pvmehta.com

  • Home
  • About Me
  • Toggle search form
  • First Entry in RAC Oracle
  • scripts to take listener.log backup Linux/Unix
  • How to find where datafile is created dbf_info.sql Oracle
  • normal maintenance for exp-imp and renaming table Oracle
  • Processes parameter and its dependencies on OS kernel parameters Linux/Unix
  • SQL_PLAN.sql for checking real execution plan Oracle
  • For Search and replace unix command. Linux/Unix
  • Exadata Basics Oracle
  • Proc Compilation Oracle
  • Best approach for Oracle database patching sequence to latest/required patchset along with CPU/PSU/any-other-one-off patch ID 865255.1 Oracle
  • .profile Linux/Unix
  • To check whether standby is recovering properly or not?? Oracle
  • Find Stale DR Physical Standby Oracle
  • Ports used by Oracle Software Oracle
  • cp_filesystem.sql Oracle

Category: Oracle

DBMS_Shared_pool pinning triggers

Posted on 02-May-2007 By Admin No Comments on DBMS_Shared_pool pinning triggers

How to pin a stored procedure/functions ? 1.You can pin procedures and triggers with the dbms_shared_pool procedure. Either procedures or packages can be pinned with the ‘P’ flag, which is the default value (so you can leave it out). Triggers are pinned with ‘R’ and anonymous plsql blocks need any letter other than [p,P,r,R] as…

Read More “DBMS_Shared_pool pinning triggers” »

Oracle, SQL scripts

TOP-N Sql to find Nth max or Top N rows

Posted on 01-May-2007 By Admin No Comments on TOP-N Sql to find Nth max or Top N rows

PURPOSE This note explains the TOP-N Query, a new feature (as of 8.1.5) that allows users to query on ROWNUM and order results with ORDER BY. This functionality is similar to the offerings of other database software such as the “Top Values’ property option in Microsoft Access. Top-N Query to Solve ORDER BY…ROWNUM Inaccuracy: ==================================================…

Read More “TOP-N Sql to find Nth max or Top N rows” »

Oracle, SQL scripts

Facts about SCN and Rollback Segment

Posted on 21-Apr-2007 By Admin No Comments on Facts about SCN and Rollback Segment

1. When should you create more rollback segments? The number of rollback segments needed to prevent contention between processes can be determined with the help of the monitor rollback display and with the use of the v$waitstat table. The rollback monitor column “header waits/sec” gives an indication of the current rollback segment contention. Waits are…

Read More “Facts about SCN and Rollback Segment” »

Oracle, SQL scripts

logminer and my_lbu

Posted on 18-Apr-2007 By Admin No Comments on logminer and my_lbu

dbms_logmnr.add_logfile(‘/export/home/oracle/paresh/arch1_558809894_83113.arc’, options => dbms_logmnr.new); dbms_logmnr.add_logfile(‘/export/home/oracle/paresh/arch1_558809894_83114.arc’, options => dbms_logmnr.addfile); dbms_logmnr.add_logfile(‘/export/home/oracle/paresh/arch1_558809894_83115.arc’, options => dbms_logmnr.addfile); dbms_logmnr.add_logfile(‘/export/home/oracle/paresh/arch1_558809894_83116.arc’, options => dbms_logmnr.addfile); execute DBMS_LOGMNR.START_LOGMNR(options => dbms_logmnr.dict_from_online_catalog); Then rename v$logmnr_contents to logminer_bak. Then run my_lbu.sql

Oracle, SQL scripts

How to Use DBMS_STATS to Move Statistics to a Different Database

Posted on 19-Mar-2007 By Admin No Comments on How to Use DBMS_STATS to Move Statistics to a Different Database

Subject: How to Use DBMS_STATS to Move Statistics to a Different Database Doc ID: Note:117203.1 Type: FAQ Last Revision Date: 01-MAR-2007 Status: PUBLISHED To provide Oracle Support Services with statistics for debugging, please refer to the following article: Note 242489.1 Transferring Optimizer Statistics to Support Purpose: ======== The purpose of this article is to explain…

Read More “How to Use DBMS_STATS to Move Statistics to a Different Database” »

Oracle, SQL scripts

export import with parameter file.

Posted on 15-Mar-2007 By Admin No Comments on export import with parameter file.

Export with parameter file and import with same. =============================================== Task : I am exporting some tables from CS and importing thsoe tables into BASKET schema. /**************************************************** FILE NAME: exp_wo_data.par *******************/ userid=cs file=exp_bskt_15MAR07.dmp compress=N grants=N log=bskt_exp_15MAR07.log ROWS=N triggers=N statistics=NONE tables=(BSKT_AGENT_BASKET_CALL_DETAIL , BSKT_AGENT_ORDER_NOTE , BSKT_BASKET_ITEM_TYPE , BSKT_DISCOUNT_APPLY_TYPE , BSKT_DISCOUNT_REASON , BSKT_ITEM_CALC_PRICING , BSKT_ITEM_PRICING_XREF , BSKT_ITEM_SUB_PRODUCT , BSKT_PAYMENT_DETAIL…

Read More “export import with parameter file.” »

Oracle, SQL scripts

Another Tuning Article for subheap of shared pool

Posted on 16-Feb-2007 By Admin No Comments on Another Tuning Article for subheap of shared pool

http://www.mail-archive.com/oracle-l@fatcity.com/msg79721.html Oh yeah, I forgot to say that in 9.2.0.3 the shared pool was broken up into “heaps” (Oracle terminology) but whatever fancy stuff they were trying to accomplish by doing this (I think part of the magical self-tuning initiative) was buggy and this hastened the fatal 4031 situation. There is a parameter (so I…

Read More “Another Tuning Article for subheap of shared pool” »

Oracle, SQL scripts

good note for shared pool tunnig

Posted on 16-Feb-2007 By Admin No Comments on good note for shared pool tunnig

Note:396940.1 How many Subpools will I have by default? The number of subpools is calculated using a simple algorithm. First, a subpool must be at least 128MB in 9i releases and at least 256MB in 10g releases. Bugs and internal tests show that subpools around 500M will work most efficiently and in future versions, we…

Read More “good note for shared pool tunnig” »

Oracle, SQL scripts

When to rebuld B-tree index

Posted on 09-Feb-2007 By Admin No Comments on When to rebuld B-tree index

Here is the syntax: analyze index CUSTOMER_LASTNAME_IND validate structure; It populates the SYS.INDEX_STATS view only. The SYS.INDEX_STATS view can be accessed with the public synonym INDEX_STATS. The INDEX_STATS view will hold information for one index at a time: it will never contain more than one row. Therefore you need to query this view before you…

Read More “When to rebuld B-tree index” »

Oracle, SQL scripts

Another export with Query

Posted on 07-Feb-2007 By Admin No Comments on Another export with Query

exp userid=cs file=gift_cert_07FEB07.dmp log=gift_cert_07FEB07.log compress=N grants=N tables=gift_certificate statistics=none query=”where dt_crtd >= to_date(’02-04-2007 10:00:00′,’MM-DD-YYYY HH24:MI:SS’)” /* WITH LOG */ imp userid=cs file=gift_cert_07FEB07.dmp log=gift_cert_07FEB07_imp.log ignore=Y grants=N fromuser=cs touser=cs statistics=none constraints=N buffer=10485760 commit=y indexes=N feedback=5000

Oracle, SQL scripts

Posts pagination

Previous 1 … 19 20 21 … 40 Next

Categories

  • Ansible (0)
  • AWS (2)
  • Azure (1)
  • Linux/Unix (149)
  • MYSQL (5)
  • Oracle (393)
  • PHP/MYSQL/Wordpress (10)
  • POSTGRESQL (0)
  • Power-BI (0)
  • Python/PySpark (7)
  • RAC (17)
  • rman-dataguard (26)
  • shell (149)
  • SQL scripts (342)
  • SQL Server (6)
  • Uncategorized (0)
  • Videos (0)

Recent Posts

  • Trace a SQL session from another session using ORADEBUG30-Sep-2025
  • SQL Server Vs Oracle Architecture difference25-Jul-2025
  • SQL Server: How to see historical transactions25-Jul-2025
  • SQL Server: How to see current transactions or requests25-Jul-2025
  • T-SQL Vs PL/SQL Syntax25-Jul-2025
  • Check SQL Server edition25-Jul-2025
  • Checking SQL Server Version25-Jul-2025
  • Oracle vs MYSQL Architecture differences (For DBAs)24-Jul-2025
  • V$INSTANCE of Oracle in MYSQL24-Jul-2025
  • Day to day MYSQL DBA operations (Compared with Oracle DBA)24-Jul-2025

Archives

  • 2025
  • 2024
  • 2023
  • 2010
  • 2009
  • 2008
  • 2007
  • 2006
  • 2005
  • Some useful Unix Commands Linux/Unix
  • runsql_once.ksh Linux/Unix
  • Standby Database Behavior when a Datafile is Resized on the Primary Database Note:123883.1 Oracle
  • tblwopk.sql tablewopk.sql Oracle
  • changing kernel parameter in Oracle Enterpise Linux Linux/Unix
  • Oracle Internal Good Websites 1 Oracle
  • To find explain plan for a statement that occurred in past. Oracle
  • How to choose Driver table in SQL statement Oracle

Copyright © 2025 pvmehta.com.

Powered by PressBook News WordPress theme