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In my previous article I described a few technics of accessing a guest virtual machine from the virtualization host (KVM) without any credentials. It assumed that our data can get compromised by a corrupted ven
So apparently this cloud-thing is here for good. You may even say that it became endemic 😉 With cloud there is one potential problem – the bigger and heavier it is, the more possible is the leak. Cloud after a
Parse it 🙂 Simple, right? But for sure we are not going to use tkprof for 14 000 trace files, are we? We don’t have Diagnostic Pack and we just started a complete database tracing for an hour or two, because t
There’s a lot of articles about installing Oracle XE 18c on Docker. But Docker is not the only containerization technology on the market. In this article, we are going to create Oracle XE 18c installation in Li
In my previous post I described a case of "enq: TX – row lock contention" that was actually a network latency problem. More and more those kinds of problems (it seems like history happens all over again) caused
So we had a doubtful pleasure of migrating a few databases from Oracle Exadata X3-2 to Oracle Exadata X7-2 Cloud at Customer. Why doubtful? Well, this a material for a whole different story with a lot of beer –
You probably heard by now about Oracle Cloud Free Tier While it sounds good, the only databases that you can use are in fact autonomous databases (which are not interesting for a tech, geeky guy like me). Of co
Python is awesome. I like Python very much, but there are some cases where Python’s performance is just not enough. What other options do we have? Well, there’s for example GoLang Problem with GoLang is that th
At Trivadis Performance Days 2018 (awesome event by the way) I promised to deliver ODBV3 with support for ASM – and here it is! 🙂 https://github.com/ora600pl/odbv To use it, you have to have access to a user a
It has been crazy few months – organizing POUG2018 took a lot of energy but it was satisfying as hell! 😀 This weekend I had some time to prepare a new version of ODBV for Trivadis Performance Days 2018 where I
After my last article AMM vs security, Martin Berger wrote to me: well, even without AMM you can do it: write your own process which attaches to the same shm segments – and use its memory mapping (?) My respons
Most of us already know that AMM sucks. But usually, we think about disadvantages of AMM in terms of performance. Let’s see why it sucks in the terms of security 😉 Let’s create an encrypted tablespace for HR.E