HackerRank 'Birthday Cake Candles' Solution
May 8, 2019
HackerRank 'A Very Big Sum' Solution
May 7, 2019
Short Problem Definition:
Posting Schedule Sprint/Summer 2019
May 5, 2019
This page has 85 HackerRank Tasks posted as of May 2019. After looking over my HR profile, I noticed that I had solved a total of 200 Tasks there. In other words, I have not posted the majority of them :)
HackerRank 'New Year Chaos' Solution
May 5, 2019
Short Problem Definition:
How Transaction Locks support Zero Overhead Distributed DML
April 3, 2019
Let us imagine a scenario that needs to prevent MVCC write skews…
Distributed Transactional Locks
April 3, 2019
As I explained in a previous blog post, sometimes MVCC is not sufficient and an operation needs to block out all other concurrent modifications. NuoDB is able to lock three types of lockable resources: tables, schemas, and sequences. A resource can either be locked in SHARED mode (which still allows record modification, but no metadata modification) or EXCLUSIVE which prevents any concurrent modification.