Tag: Oracle

Managing Oracle on Windows: Where’s my Oratab?

If you manage Oracle on Windows, you probably have wondered why it is so difficult to work out which Oracle instances are running and which ORACLE_HOMEs they use. On Unix or Linux, this is a very simple task.  Oracle services…

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Exadata Join Offloading in Action

One of the biggest selling features of Oracle’s flagship engineered system – Exadata – is the storage offloading capabilities. Storage offloading allows data to be filtered as soon as it is read from storage, reducing the amount of data that…

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Log Buffer #324, A Carnival of the Vanities for DBAs

A blog post is a composition in an informal verse, usually characterized by the sharing of ideas, experiences, and opinionated news. This vivid explanation of valuable ramblings about the database technologies is what makes this Log Buffer Edition again.

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Oracle Database Load Testing Tools – Overview

At Pythian’s internal forum, someone just asked the following question: “The team here is evaluating DB load testing tools (Hammerdb, Orion, SLOB, and Swingbench) and was wondering about our experience in using different tools and what is our opinion?” I…

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Hard Drive: Inner or Outer?

To be precise, I wonder if OUTERmost tracks of a spinning HDD are faster than INNERmost tracks. Should we put physical IO performance secretive data to OUTERmost parts of  the disk and less critical data to INNERmost parts as several vendors suggests? Well I couldn’t find…

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A Most Simple Cloud: Is Amazon RDS for Oracle Right for You?

Amazon Web Services has offered Relational Database Service as part of their cloud offering since 2011.  These days, RDS provides easy to deploy, on-demand database-as-a-service for MySQL, Oracle, and SQL Server.  When you compare it to essentially any other method of…

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Log Buffer #323, A Carnival of the Vanities for DBAs

The onslaught of blogs is hard to ignore and underestimate. Blogging has become part of technologists everywhere, including the database professionals and evangelists. This Log Buffer Edition appreciates that and consists of blogs from Oracle, SQL Server and MySQL.

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Log Buffer #322, A Carnival of the Vanities for DBAs

Log Buffer’s collection of blogs from across the world of various databases is all about nifty features, cool tricks, pragmatic tips, real world war stories, and much more.

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Creating a Physical Standby with RMAN Active Duplicate in 11.2.0.3

Other DBAs have written about this topic, but I wanted it to be available on Pythian’s blog. When I searched for how this was done, other sites were either not very clear on the steps they did, assumed that you…

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How to Install Oracle VM Manager 3.2.x Under Dom0 Hosts

Some of you know that I have published an article explaining how to install Oracle VM Manager (OVMM) on a Dom0 host after Oracle’s release of Oracle VM 3. I have described why you may want to do it in…

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