Uwe Hesse

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Homepage: http://uhesse.com

Impressions from #oug_ire 2014

The Oracle User Group Ireland had its annual conference for 2014 at the Convention Centre in Dublin – which is a very nice location:

Convention Centre in DublinThere have been many well known Oracle Experts speaking, as you can see from the agenda. Oracle University was represented by Joel Goodman and myself – we really enjoyed talking there and listening to the other speakers :-)

Joel Goodman and Uwe Hesse at the OUG Ireland Conference 2014The first presentation I attended was delivered by Tom Kyte, who in the absence of Maria Colgan delivered an Introduction to the New Oracle Database In-Memory Option. This extra charged option will probably be available with 12.1.0.2, which we expect to be released this calendar year. Safe Harbor etc. as usual. One key point that I took away here was that it is extremely easy to implement the In-Memory Option: Just set one initialization parameter and designate the use on the segment level with alter table e.g. Especially, the storage structure on disk remains unchanged and the whole thing is completely transparent for the application layer.

Next talk was delivered by fellow Oakie Tim Hall: An Oracle DBA’s Guide to WebLogic Server.

Tim Hall

He tried to pack all the information that he wished he knew before he dealt with WebLogic for the first time into that presentation. Very useful indeed for starters, I suppose. There was no single key point here to highlight, instead we got a collection of small but helpful tips that I will definitely come back to when implementing WebLogic myself.

Next I went to Simon Haslam, who talked about What’s So Special about the Oracle Database Appliance?

Simon HaslamSome key points here: ODA is definitely to be considered for rapid RAC deployment, especially for small to midsized projects with less demand for extremely good I/O performance. Also, it is probably a clever move to install it as virtualized platform based on Oracle VM, even in case that at first only databases are supposed to run there. This is easy to install initially (but an effort to change that after the fact) and has no negative performance impact.

Afterwards I did my own two presentations: Real-Time Query for Data Guard 11g in Action and Data Guard 12c New Features in Action

Uwe Hesse presenting about Data GuardMany thanks to my dear colleague Mina Sagha Zadeh who took the picture and introduced my talk in the most charming and flattering way I have ever experienced so far :-)

All in all it was a fantastic event in Dublin, kudos to the Oracle User Group Ireland for organizing and running it so well – great job!

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Active Data Guard – what does it mean?

There are misconceptions and half-truths about that term that I see time after time again in forums, postings and comments.

Some people think that Active Data Guard is a fancy marketing term for Standby Databases in Oracle. Wrong, that is just plain Data Guard :-)

Most people think that Active Data Guard means that a Physical Standby Database can be used for queries while it is still applying redo. Not the whole truth, because that is just one featureReal-Time Query – which is included in the Active Data Guard option.

Active Data Guard is an option, coming with an extra charge. Active is supposed to indicate that you can use the standby database for production usage – it is not just waiting for the primary database to fail.

In 11g, Active Data Guard includes three features:

  • Real-Time Query
  • Automatic Block Media Recovery
  • Block Change Tracking on the physical standby

In 12c, Active Data Guard got even more enhanced and includes now the features:

  • Real-time Query
  • Automatic Block Media Recovery
  • Block Change Tracking on the physical standby
  • Far Sync
  • Real-Time Cascade
  • Global Data Services
  • Application Continuity
  • Rolling Upgrade using DBMS_ROLLING

The bad news is that many of the 12c Data Guard New Features require Active Data Guard

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Join us at the OUG Ireland 2014!

Oracle User Group Ireland 2014 Conference

The Oracle User Group Ireland has their annual conference in Dublin with an interesting agenda.

Speakers like Tom Kyte and Timothy Hall stand as a guarantee for high quality.

Oracle University is also showing presence there with Joel Goodman and me, not only as speakers on Tuesday but also with two Master Classes on Wednesday during the OUG Ireland 12c Workshop.

Hope to see you there :-)

The 12c Workshop got cancelled, sorry.

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