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Oracle OpenWorld has always been my most exciting conference to attend. I always see high energy levels everywhere, and it kind of revs me up to tackle new upcoming technologies. This year I concentrated on attending mostly Oracle E-Business Suite release 12.2 and Oracle 12c Database-related sessions.
When using the Data Guard Broker, you don’t need to set any LOG_ARCHIVE_* parameter for the databases that are part of your Data Guard configuration. The broker is doing that for you. Forget about what you may have heard about VALID_FOR – you don’t need that with the broker. Actually, setting any of the LOG_ARCHIVE_* parameters with an enabled broker configuration might even confuse the broker and lead to warning or error messages. Let’s look at a typical example about the redo log transport mode.
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It's amazing to you find out how easy is to take for granted certain features of Apex for the simple fact that you have been using them for a long time without paying too much attention to certain specific details.
This morning I ran a report that I rarely use in an application and to
During one of the classes I taught about Exadata optimisations I had an interesting question:
If I am using VPD, will Exadata still offload the query?
Background is that we discussed function offloading, and the meta-view v$sqlfn_metadata. It turned out that SYS_CONTEXT() is not offloadable in 184.108.40.206.
At Oracle Open World 2014, or rather the Oaktable World, Chris Antognini has presented 'Indexes: Structure, Splits and Free Space Management Internals'. It's not something new, but it's still something that is not always well understood: how index space is managed, block splits, fragmentation, coalesce and rebuilds. Kyle Hailey has made a video of it available here.
For me, it is the occasion to share the script I use to see if an index is fragmented or not.
The content you publish on your site is the result of a lot of behind-the-scenes activity — and we’re not talking only about drafting posts and pages. Emails, meetings and events, documents and spreadsheets: as business owners and publishers you have a lot to juggle.
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When I started this blog, almost 6 years ago I had a clear purpose: give back. I had extracted so much useful information from the internet and in early 2009 it was time to give back. Publish my tricks, secrets, tips, etc. I then moved into Oracle and now I can’t disclose everything I know. […]
On a client site recently, experimenting with a T5-2 – fortunately a test system – we decided to restart an instance with a larger SGA. It had been 100GB, but with 1TB of memory and 256 threads (2 sockets, 16 cores per socket, 8 threads per core) it seemed reasonable to crank this up to 400GB for the work we wanted to do.
The single most important factor for successful digital learning is the attitude both of the instructor as well as of the attendees towards the course format. Delivery of countless Live Virtual Classes (LVCs) for Oracle University made me realize that. There are technical prerequisites of course: A reliable and fast network connection and the usage of a good headset is mandatory, else the participant is doomed from the start.