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Technical Articles

Technical Oracle Articles

About Apps 11i Clone – A Human Touch

Apps clone is like cloning a human being. Please read the detail below.

1) Run adpreclone on DB/CM/AP tiers

This is pre-requisite step of cloning 11i prod and will not change anything in any system. This script will only create on $COMMON_TOP, a directory called "clone", with a basic structure of executable, scripts, templates and java files.

The COST column of EXPLAIN PLAN

The COST column cannot be used to compare execution plans. Punkt.

Can you create objects in a READ ONLY tablespace?

Hi Oracle geeks,

Last Friday, I’ve noticed a strange thing happening in my 11.2.0.3 Database: I’m able to create objects in a tablespace which is marked READ ONLY !!!

Don’t believe this??

How to use Incarnation in Oracle 10G

andy huang's picture

OS:Red Hat Linux As 5
DB Version:10.2.0.4

[=16]In 9i,we open the database with resetlogs just only once when we do the incomplete recover,but in the 10g, it can open the database with resetlogs more than once,the flowing test is show how to open the database with resetlogs many times.
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Oracle Database 11g Release 2: Performance Tuning Tips and Techniques (Richard Niemiec)

I've been asked by the publishers to review "Oracle Database 11g Release 2: Performance Tuning Tips and Techniques" by Richard Niemiec of TUSC. Conclusion: it is good but not perfect. This is an extended version of the review I put up on Amazon.

FIne Grained Dependencies in Oracle 11g

Dependency Oracle schema is the place where all the Database objects get stored. This make a room for the entire set of objects under the Category of Data Storage ( Tables, Views) and Data Access (Stored Procedure ,Functions ,Packages and Triggers) .These Objects make a reference across all these objects to form the application.This is known as dependency.

Conventional Dependency Model If an Object B is being referrd from object A (ie Object A refers another Object B) , Object A is known as Dependant Object and Object B is Known as referenced Object.

Basics of Partition Tables in Oracle

Basics of Partition Tables

Partitioning is a method of splitting an object (a table or index) into separate parts (called partitions) based on some criterion that is assigned to the partition. The criterion might be a date range, a number range, or any other possible value. Imagine, for example, that you have a huge table that is driving you crazy because queries on it are really slow. You get so mad at this table that you take a logical hatchet and begin to slice the table up into many smaller tables is a partition.

Common ORA errors

Below are some ORA-ERROR which every DBA face:

1. ORA-00600/ORA-07445
Clause: Most likely it is related to bug
Solution: go to metalink and apply patch set.

2. ORA-03113
Clause: It is generic error means lots of reason behind this.
Solution: Depends on condition but best way to search on google/forms.

3. ORA-04031
Clause: Mis-configuration of SGA, insufficient memory
Solution: Sametime need to add memory on system, or sametime need to reduce SGA memory

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11.2.0.3 Database Certified with E-Business Suite

Oracle 11.2.0.3, the second patch set for the 11gR2 database, is now certified with with E-Business Suite and is available for download in 32 and 64-bit.

You can download it from only your meta link account credential.

Patch No: 10404530

Oracle E-Business Suite Release 11i

Prerequisites

* 11.5.10.2 + ATG PF.H RUP 6 and higher

Certified Platforms

* Linux x86 (Oracle Linux 4, 5)
* Linux x86 (RHEL 4, 5)
* Linux x86 (SLES 10)
* Linux x86-64 (Oracle Linux 4, 5)

Partition Exchange by Example

One of the great features about partitioning, and most specifically range-based partitioning, is the ability to load data quickly and easily with minimal impact on the current users using:

alter table call exchange partition data_2007 with table call_temp;