Category Archives: Oracle

Coincindences

I had another of those odd timing events today that make me think that Larry Ellison has access to a time machine. I found (yet another example of a) bug that had been reported on MoS just a few days before it appeared on an instance I was running. How is it possible that someone keeps doing […]

REPVFY Diagnostics, Part I of…Well, A Zillion

TweetThere are a number of Verification Utilities for Enterprise Manager 12c, (EM12c) and I’ve written about them before, but today I’m going to start on the Repository Verification Utility, (REPVFY).  This will be an ongoing series, as there are so many valuable features rolled into the utility and new ones that will be added as […]

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Copyright © DBA Kevlar [REPVFY Diagnostics, Part I of...Well, A Zillion], All Right Reserved. 2014.

Bitmap loading

Everyone “knows” that bitmap indexes are a disaster (compared to B-tree indexes) when it comes to DML. But at an event I spoke at recently someone made the point that they had observed that their data loading operations were faster when the table being loaded had bitmap indexes on it than when it had the equivalent B-tree indexes in place. There’s a good […]

Netherlands ADF Event with AMIS: Enterprise to Mobility

For Oracle customers interested in ADF, mobility and all things enterprise, Frank Nimphius, Steven Davelaar and myself have the pleasure of attending and presenting at an AMIS hosted ADF conference Wednesday May 21st through Friday May 23rd in Nieuwegein Netherlands.  

Rarely is there a conference focused purely on ADF and ADF Mobile, especially 3 days worth, so as you can appreciate this represents a unique opportunity to talk and learn from your ADF peers.  What makes this conference particularly interesting from my perspective is that it’s not just Oracle staff giving the Oracle view of the world, but AMIS staff, Oracle ACE/ACE Directors and real customers will also be presenting.  I’m betting there is going to be a few “friendly debates” during the 3 days.

(though Oracle staff reserve the right to be always right regardless, it’s in the safe harbour slide don’t you know ;-)

We hope you’ll take the opportunity to join us in May. You can check out a full description of the agenda via this AMIS blog post, as well as this site for registration.

EM12c Utilizing After Hours Notification Schedule- Part II

TweetNow that we learned in Part I how to create a notification schedule for a specified user so that it will only page one individual on an oncall rotation, I’ll now show you how to use this in conjunction with rulesets to complete the process of modernizing and automating your oncall. In my Test scenario, […]

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Copyright © DBA Kevlar [EM12c Utilizing After Hours Notification Schedule- Part II], All Right Reserved. 2014.

OEM After Hours Notification Schedule Option- Part I

TweetI came across a discussion on Oracle-l on how after hours paging was handled for many companies and was kind of surprised how many DBAs still carry around a secondary pager/cell phone or are just expected to be woke up if on call or not.  I’m not one to go back to sleep once I’m […]

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An introduction into Oracle Enterprise Manager Cloud Control 12c Release 3

I have given some internal and customer presentations lately that you might find useful or like, so hereby a direct share to the presentation about Oracle’s Enterprise Manager Cloud Control (V3) An introduction into Oracle Enterprise Manager Cloud Control 12c Release 3 from Marco Gralike

Frequently Misused Metrics in Oracle

Lying Businessman

Back in March of last year I wrote an article on the five frequently misused metrics in Oracle: These Aren’t the Metrics You’re Looking For. To sum up, my five picks for the most misused metrics were: db file scattered read – Scattered reads aren’t always full table scans, and they’re certainly not always bad. […]

The post Frequently Misused Metrics in Oracle appeared first on Oracle Alchemist.

EM12c Auditing

TweetLately I’ve been having more discussions on securing the EM12c environment.  All of IT has a tendency to treat the Enterprise Manager as a afterthought in both hardware allocation, as well as security best practices.  No one is sure of exactly why this is-  they all have their theories, but we do know it happens […]

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Oracle RMAN Restore to the Same Machine as the Original Database

Among the most critical but often most neglected database administration tasks is testing restore from backup. But sometimes, you don’t have a test system handy, and need to test the restore on the same host as the source database. In such situations, the biggest fear is overwriting the original database. Here is a simple procedure…