Oracle Enterprise Linux 6.6 AMI Available on AWS

We've had a number of requests for versions of our OEL AMI. The version for 6.6 has been released to the AWS Marketplace now, you can access it at this link

We're also planning to align the updates to the AMIs with our own internal updates. This will mean that the AMIs will be updated to the latest security updates for the point release on a quarterly basis. We want to make sure this (more...)

Oracle Database standard Geo Location Support using Locator (included in every edition!)

imageMany databases have native support for locations en geodata – and determining distance and closest locations (within a certain perimeter). Oracle Database has the [Graph and] Spatial Option – that supports even the most advanced and exotic forms of location related data querying (including multidimensional shapes and probably relativistic effects); this option comes on top of Enterprise Edition and carries additional costs. What may be not as well know is the Locator functionality that is (more...)

OFS and DBFS Questions (Oracle 12.2)


I pushed out some new articles yesterday.

The SecureFiles article is mostly links to other articles, but it was requested by a reader. In the process of doing that I noticed the new OFS feature in 12.2, which took me down a rabbit hole for a (more...)

Connecting directly to DBaaS – ICS Definitive Tip #7

Enriching an integration from data in a database or DBaaS (Database as a Service) is not an unusual requirement. Many integration use cases today need to access a database that is on-premises. The means to connect to the database is fairly obvious – the connection agent. Our book goes into a lot more detail as to […]

The post Connecting directly to DBaaS – ICS Definitive Tip #7 appeared first on Implementing Oracle Integration Cloud Service.

Enterprise Workloads – what can the cloud do for me?

What exactly can the Cloud do for me? 

We wouldn’t blame you if you’re bored of hearing it: if it’s in the cloud, it must be better. But…why is it better? Before you go ahead with a decision like this one, you’ll want to look at specific, concrete examples of the practical benefits of cloud-based hosting. A solution that matches the needs of one business isn’t guaranteed to be the perfect match for another. (more...)

Insider View of a Delphix VDB Rewind

I love questions-  They give me something to write about that I don’t have to come up with from my experience or challenges…:)

So in my last post, Paul asked:

I am not sure what happens to the other changes which happened while the release was happening? Presumably they are also lost? Presumably the database has to go down while the data is reverted?

The Setup

In our (more...)

Introducing Darwin Oracle Type Accelerator


Years ago, I created a set of XSL templates and queries to create object types out of queries on the datadictionary of the Oracle Database. It only did basic types on tables, and selects on those. I wrote an article on it that still can be downloaded here. Later, I extended the framework to also do inserts and updates and follow foreign keys. The thing with foreignkeys is that you can handle them a as (more...)

Database Administration : Dead or Alive?

I get this type of question a lot at the moment. It’s not surprising as I’ve done a few things of late that seem to have got people a bit riled up.

  • During my cloud database talks I’ve been saying things like, if you think a DBAs job is just to install, backup and patch the database, the cloud has taken your job.
  • I happened to mention the Oracle Cloud Apps DBA role does not (more...)

Golden Gate 12c and DIY Sequence Replication with PL/SQL

Recently, while migrating AIX 11gR2 Databases to Oracle Linux 12cR1 on an ODA X5-2, our setup of Sequence Replication by Oracle Golden Gate appeared to be faulty. The target side sequences were not automatically incremented.

The problem came to light during the migration of acceptance databases, and under some time pressure it was devised to generate drop + create statements ( start with = DBA_SEQUENCES.LAST_NUMBER + DBA_SEQUENCES.INCREMENT_BY ) of all sequences in the (more...)

How to create dashboard for Hadoop Hive Database

HiveServer2 is a service that enables clients to execute queries against Hive. It supports multi-client concurrency and authentication.

Are you using Hadoop Hive for your data marts or data-warehouse? If so, build your Free Hadoop Hive web dashboard software.

A Hadoop Hive dashboard visually summarizes all the important metrics you have selected to track, to give you a quick-and- easy overview of where everything stands. With real-time Hiveserver2 SQL reporting reporting, it's a live view (more...)

Moving your Oracle Data to the Cloud with Minimal Downtime


Moving from an on-premise Oracle database to the Cloud can mean a whole host of different challenges, and these are different for every business. One of the things we’ve tackled for larger companies is the problem of migrating a lot of data, with not much time to play with. Big businesses come with big sets of data, and often don’t have time to spare for a lengthy window of downtime. Systems down means money spent, (more...)

Oracle Enterprise Linux – Pre-Built for Enterprise

We've shared the AMI we use for running Oracle Enterprise Products like e-Business Suite. You'll find it on the AWS Marketplace pre-loaded with all the pre-requisites you need for your Oracle implementation on AWS.

Link to the Marketplace...


Tips for Upgrading a Database

In February ’17 I participated in Mike Dietrich’s upgrade workshop and it was great! I don’t want to repeat stuff that he said there, you can read everything on his blog. This workshop made me think about upgrades I did in the past (and I did quite a few) and important things to think about before … Continue reading Tips for Upgrading a Database

Optimizer Bugs and Issues

I wrote before about optimizer changes after upgrades, so this is a quick post about some more information related to this topic. As I wrote in the post I mentioned above, most of the issues we run into after upgrading are performance related. I guess this is the case because it’s one of the most … Continue reading Optimizer Bugs and Issues

Metadata Modeling in the Database with Analytic Views

Metadata Modeling in the Database with Analytic Views

12.2, the latest Oracle database release provides a whole set of new features enhancing various aspects of the product including JSON support, Auto-List Partitioning and APEX news among others. One of the biggest news in the Data Warehousing / Analytics area was the introduction of the Analytic Views, that as per Oracle's definition are

Metadata objects that enable the user to quickly and easily create complex hierarchical and dimensional queries on data (more...)

Business rules, common sense and query performance

Very often, significant performance benefits can be obtained by using some very basic knowledge of the application, its data and business rules. Sometimes even less than that: even if you are not familiar with the application logic at all, you can still use common sense to make some reasonable guesses that would get you a long way in improving query’s performance. Here is an example (based on an actual query that I had to tune (more...)

Oracle database 12.1.0.2.170117 (januari 2017 PSU) and TDE wallets

Recently, I was trying to setup TDE. Doing that I found out the Oracle provided documentation isn’t overly clear, and there is a way to do it in pre-Oracle 12, which is done using ‘alter system’ commands, and a new-ish way to do it in Oracle 12, using ‘administer key management’ commands. I am using version 12.1.0.2.170117, so decided to use the ‘administer key management’ commands. This blogpost is about an (more...)

Using Different Languages in Oracle – Part 2

In the previous part (you can find it here) I discussed the character sets Oracle supports and the length limits. In this part I’ll show how it is actually stored and discuss some more topics that are relevant to using different languages with Oracle. Seeing the Data In order to see how Oracle saves the data, … Continue reading Using Different Languages in Oracle – Part 2

Oracle 12.2 is Released!

Remember my post about Oracle 12.2 release date? I’ve heard rumors that Oracle changed the date to March 1st, and it was right! Oracle 12.2 is available for download for Linux x86-64, and Solaris (both SPARC and x86-64). I don’t know the release dates for other platforms. This is the download page: http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html I’m downloading … Continue reading Oracle 12.2 is Released!

Simple Way to Export Your Data from Oracle Cloud

You should not get stuck in the Cloud. There are various options to create Oracle Cloud backup, but is very important to keep a local copy of your data. One of the simplest options to create a local copy of data from the Oracle Cloud - use Oracle SQL Developer.

Define Oracle Cloud DB connection in SQL Developer (the same as regular DB connection):


Use Database Export utility from Oracle SQL Developer:


Allows to export (more...)