Author Archives: George Valentin Voina

#Oracle: #SQL to get the latest executed queries in a schema

By | February 20, 2021

I was trying to obtain the last executed query on an Oracle instance. Seems easy but I wanted also: to exclude the queries that are done by sys user as maintenance to focus on queries executed by a specific client type. The best way to do it is to use the V$SQLAREA system table. V$SQLAREA… Read More »

#Twitter Card: ERROR: Fetching the page failed because other errors

By | February 16, 2021

After some updates suddenly all the post I shared from Jetpack for WordPress had no valid Twitter card. After some mail exchanges with Jetpack support they assured me that all is good from their part. As instructed by them I was able to see that indeed Jetpack was correctly generating the Twitter Card. Still checking… Read More »

Add preview WEBP images on nautilus on #Fedora #Linux

By | February 15, 2021

The new webp image standard is used a lot this days. Somehow Nautilius is not generating thumbnails for this format automatically. To add support for this just do the following: STEP 1: Add support for the new image format. Create a new file /usr/share/thumbnailers/webp.thumbnailer with the following content. Also make sure totem player is installed,… Read More »

#fintech Resources for understanding #SwiftMT and #ISO #payment messages

By | February 15, 2021

Swift MT and ISO messages are the basic message formats used all across the financial world in most of the payment systems. Yes there are notable exceptions like NACHA or some country specific message formats but if you need to interface with or implement some payment system that at some point connects to SWIFT you… Read More »

Support and see how the magic of this self hosted blog happens

By | August 23, 2021

There were so many times when I had to search for hours for a solution that looked trivial in the end when I found it explained by some stranger on a blog or forum. There are cases when after reading manuals, documents and forums there is still no clear solution and then I wish someone… Read More »

#Bitcoin white paper and my financial advices #Coinbase #Mycelium

By | February 20, 2021

This is my small contribution to the decentralized finance. Bitcoin is a future store of value. Bitcoin is not a traditional currency. Craig Wright It’s Not Satoshi. I am a Coinbase customer. I have a Mycelium wallet also. Stock market is a scam, do not buy shares. Banks are no longer a valid way to… Read More »

Install #Signal on #Fedora #Linux

By | January 29, 2021

As you maybe discovered there is no rpm build support from the Signal team. Yes you can compile your own version and then do that for every new release but if you are lazy like me and nor an international wanted person (like Assange) there is a simpler version to do it. Here comes the… Read More »