AskDba.org Weblog

Writing About Our Experiences With Oracle Databases

Sunday February 5th 2012

Latest Topics

11gR2:Listener Startup Issues

In this blog post I will be discussing listener startup issues faced in 11gR2 RAC. I will be constantly updating this [Read More]

Get Upgrading: Upgrade to Enterprise Manager Cloud Control 12c

This post describes the steps to upgrade an existing 11g Enterprise Manager Grid Control (11.1.0.1.0) to 12c [Read More]

Cluster SSH tool Utility

Many times you come across scenario’s when you wish to open multiple ssh windows and execute same commands.e.g [Read More]

11g: Multiple failed login attempt can block New Application connections

In Oracle database 11g, a new feature/enhancement has potential of bringing down the application due to multiple [Read More]

Optimizer Choosing Nested-Loop Joins Instead of Hash-Joins

In one of my databases, one application query suddenly started to pick Nested-Loop joins instead of Hash-Joins and took [Read More]

Archive for December, 2009

Life Is Changed Now!!!!!

23 Dec, 2009 | Author: Saurabh Sood | 6 Comments »

Hi All, This time I am sharing an experience from my personal life, I got Married on 2nd Dec 2009 I was on holidays since last month and just joined back. In this time I visited beautiful Island of Koh-Samui (Thailand). At this time finding hard to concentrate on work [Read More]

11gR2: Steps to Rename ASM Diskgroup with DB files

01 Dec, 2009 | Author: Amit | 7 Comments »

11gR2 introduced renamedg utility to rename diskgroups. I would discuss renaming a diskgroup on a Standalone Grid Infrastructure installation with Oracle Restart. Before you use the command, ensure that ASM diskgroup is dismounted. Below is syntax for the command. You can [Read More]