Ethereum Project: The New Skynet

Decentralized technologies have made a huge progress in the last decade. The first major decentralized application to go viral was BitTorrent in early 2000. It was a file sharing network that allowed its users to share files across the globe. Five years later, Satoshi Nakamoto came out with the idea of BlockChain (a distributed Database) and used it to built the Decentralized Currency, BitCoin. BitCoin was a huge success because it allowed users to send and receive payments to anyone in the world without the approval or involvement of the financial institutions.


SQL Database Joins

If you work with multiple tables at the same time, there is a high chance you will need to join then through queries. In relational databases, we do this by using Left Joins, Right Joins, Outer Joins and  Inner Joins. Since there are so many options, the question is, which join to use in what scenario. Because if used incorrectly, the queries from these joins can produce erroneous data.