What does ACID mean?
The diagram below explains what ACID means in the context of a database transaction.
🔹 Atomicity
The writes in a transaction are executed all at once and cannot be broken into smaller parts. If there are faults when executing the transaction, the writes in the transaction are rolled back.
So atomicity means “all or nothing”.
🔹 Consistency
Unlike “consistency” in CAP theorem, which means every read receives the most recent write or an error, here consistency means preserving database invariants. Any data written by a transaction must be valid according to all defined rules and maintain the database in a good state.
🔹 Isolation
When there are concurrent writes from two different transactions, the two transactions are isolated from each other. The most strict isolation is “serializability”, where each transaction acts like it is the only transaction running in the database. However, this is hard to implement in reality, so we often adopt loser isolation level.
🔹 Durability
Data is persisted after a transaction is committed even in a system failure. In a distributed system, this means the data is replicated to some other nodes.
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@visegrad24@DanielDiMartino President of Argentina Javier Milei gets a warm welcome from passengers as he flies commercial from Rome to Ezeiza, Argentina. 🇦🇷
Can you name a single other world leader that flies commercial?
How I landed my first SOC Analyst job in Cyber Security:
1. During my interview, I was handed a few pieces of paper, that were in fact printouts from Wireshark. I was asked to determine what was going on in the series of packets.
2. I took a moment, reviewed them, and then smiled.
3. I described to the interviewer, the complete story these packets told, which included the use of insecure protocols, which raised a red flag. I also determined that downloads of music from LimeWire was happening within the organization.
I was hired on the spot.
I flourished at this organization and learned so much once I was able to ride in the hot seat.
At the time:
1. I couldn't count in binary.
2. I couldn't describe the OSI model.
3. I didn't have a security certification.
It's great to understand theory. Sometimes it's just better to have hands on practical knowledge.
#cybersecurity #informationsecurity #infosec #leadershipbyexample
Who do Nigeria?wonders shall never end.. see men working hard, pushing train. 🤣🤣🤣
instead of using a railway towing cart.
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Top G #MCILIV E PAIN ME Napoli Liverpool Mercy Chinwo Asake Cavemen Ibom Air #TinubuIsNotMyPresident
Mr yakubu challenge Peter obi Oyedepo onitsha
If GRV didn’t visit OBA of Lagos, he would have been tagged arrogant but he visited only to be told “Your future is bright but SanwoOlu will win.”
At least coudn’t you pretend to be neutral just for the visit? Let’s not forget that Peter Obi won Lagos even when same OBA
They are Obidients and entire Lagosians
If you are in support of me that Mc Oluomo should be arrested.
Like Retweet and Tag @PoliceNG
Thugs/Tinubu/Ahmed Musa/APC in Lagos/Nancy Isime/Opay/Doyin Okupe/Banky W/Naira Marley/Lagos state/Alha Beta/Aso rock)LUTH/Rema/Ben Hundeyin
There is glaring video evidence of threats and the security forces say they are still investigating and Hope they will not say the video was doctored……Righteousness exalts a nation!
THE JUDICIAL LESSON FROM MALAWI
Just in case you are wondering if getting electoral justice through judicial intervention is possible, learn from the story of Malawi presidential election in 2019.
In that election, not only was the incumbent party in the contest,
1-9
Why I made this tweet....
I've always known @PeterObi, I was living in Anambra State as a student of ANSU Igbariam when he was governor, the Igbariam campus was still undergoing construction, there was barely any access road to the school.