Blog Post: An introduction to Oracle Database for beginners: What is a...
A series of posts in response to Tim Ford’s #EntryLevel Challenge . “If we shadows have offended, Think but this, and all is mended, That you have but slumber’d here While these visions did appear. And...
View ArticleForum Post: Data Modeler Reverse Engineering of Ingres DB and generate Oracle...
Hi All, I need to know if Data Modeler can reverse engineering an Ingres DB (9/10) ? If yes, can I generate the DDL for Oracle database, I need to migrate Ingres DB to Oracle and need a tool to...
View ArticleBlog Post: ORA-12537: TNS:connection closed
When trying to establish a sqlplus connection I get the "ORA-12537: TNS:connection closed" error messgae. How do I resolve this?
View ArticleBlog Post: Oracle Private Cloud Appliance: X6-2 Compute Node and new software
The Private Cloud Appliance (PCA) is a converged infrastructure offering from Oracle that can be used to consolidate Oracle and Non-Oracle applications in a single "Cloud-in-a-Box". The same servers,...
View ArticleBlog Post: My Oracle Database Cloud Cookbook published
Friends, Pleased to let you know that my Oracle Database Cloud Cookbook has been published by Oracle Press on August 5th 2016. I have written this latest book specifically for IT professionals and DBAs...
View ArticleWiki Page: Recursive Common Table Expressions
Oracle was late to the table with recursive common table expressions which have been part of the SQL standard since 2003 but, to Oracle’s credit, it has provided the CONNECT BY clause for hierarchical...
View ArticleWiki Page: Exadata - Extend root System Partition on Exadata Compute nodes
Introduction While working on Exadata Database Machines (X2 and above), I started seeing that root file system is filling fast. By default root file system on Exadata Computed nodes X2 and above are...
View ArticleBlog Post: An interesting Exadata DB migration scenario (XTTS with Incr...
SUMMARY In the previous article “ The need of refreshing/copying an Oracle 12c Password File (stored in ASM) while configuring Active Data Guard of a RAC database ”, I have discussed and shared how we...
View ArticleBlog Post: Logfile Housekeeping
There are tons of scripts and various scheduler jobs out in the field to get rid of old logfiles, dumps and traces. Some of them simply use the find command while others are using the ADR command line...
View ArticleWiki Page: Using Oracle NoSQL Database on Docker Engine
Written by Deepak Vohra Oracle NoSQL Database is a key/value model database. Installing and configuring Oracle NoSQL Database involves downloading and extracting a tar/zip file, setting environment...
View ArticleWiki Page: Introduction to JSON with Oracle Database
It's time to keep writing about Oracle Database 12.1.0.2 new features! In this article we will talk about JavaScript Object Notation better known as "JSON". Wow! Time goes by! I worked with JSON some...
View ArticleBlog Post: A Long Way Up for Oracle IaaS Cloud
Oracle continues to try to position themselves as a cloud company in both IaaS, PaaS and SaaS. However, analysts are not convinced. The Gartner Magic Quadrant for "Cloud Infrastructure as a Service"...
View ArticleBlog Post: Oracle Text, Oracle R Enterprise and Oracle Data Mining - Part 2
This is the second blog post of a series on using Oracle Text, Oracle R Enterprise and Oracle Data Mining. Check out the first blog post of the series , as the data used in this blog post was...
View ArticleBlog Post: Mi paso por el OTN Tour México 2016
Quiero contarles mi gran experiencia al participar este año en el OTN Tour 2016 siendo speaker en Mexico. Presenté un Taller de más de 2 horas y media en el cual quedé gratamente sorprendida al ver...
View ArticleBlog Post: What is Oracle Cloud?
I run several user groups including the Iowa one…we have gone to more of an open meeting to discuss problems/solutions/migration issues, etc. We call this a round table. I took it one step further and...
View ArticleBlog Post: Dropping Temporary Tables (With Bonus, Broken Check Constraints!)
I found a broken check constraint, one that simply wouldn’t work, on a database. It was created as: ... CHECK(COLUMN_NAME IN ('Y','N',NULL)) ; Try it yourself, it doesn’t work! Anyway, I needed to find...
View ArticleBlog Post: Oracle Cloud
Hi, Oracle is going down the cloud path really fast. Last week, I blogged a bit from an exchange on my user group forum where someone was asking about what exactly the cloud is. I’ll blog a bit on what...
View ArticleBlog Post: Is it time to always declare string variables as CLOBs and forget...
I received this email from a longtime Oracle Database developer: Why shouldn't we always use clobs instead of varchar2 in PL/SQL? Memory will be allocated once used so there should not be any overhead...
View ArticleWiki Page: Kubernetes
This subsection will contain articles on using Kubernetes with Docker.
View ArticleWiki Page: Getting Started with Kubernetes
Written by Deepak Vohra Kubernetes is a Docker container cluster orchestration software. While standalone Docker Engine could be used to start individual instances of Docker containers, to run a...
View Article