If HTML is a basis of frontend programming, then the SQL is a key to the deep database programming and managing of almost every existing DBMS. Using this language, you can manage different data, filter and analyze information even in very large volumes. In general, SQL first appeared in 1974, but it is still widely used by programmers who work with different databases platforms such as MySQL, because of its versatility and uniqueness. Did you know that a well-known Microsoft Access application is also based on the SQL? Yes, SQL is much closer than it seems. It’s everywhere! Typically, experienced SQL developers are working with multiple platforms and databases systems. It is an incredibly big advantage! You can hire a highly qualified SQL database developer and get an expert advice from him or simply involve him in your project as a BackEnd SQL Freelancer. During one week you can test your candidate and if he will not satisfy you, we will replace him for another one without any difficulties!

Blockchain Blockchain, by definition, is a distributed database keeping data records about developments in a digital world. This system is distributed and available to most of the users. Data records can be input only with consent of the majority of the users. Moreover, once recorded the data can’t be changed or erased. Imagine that in a busy street you see a tree that has just grown from beneath asphalt within a second. The same second everyone witnessing this, were connected to a computerized polygraph and asked to describe what exactly they had seen. As a result they, word for word, gave a clear account of what had happened. Are there any doubts that the tree has grown through the asphalt? This is the basic principle of blockchain – a powerful invention, misunderstood by many despite its ability to drastically change our interaction with the digital world.