SQL practice - way to learn!
A knowledge sctructure is a thing interesting in its own respect, isn't it? If you are thinking about learning process and reflect upon the need to revise the basic skills, it becomes even more complicated. In this article, the skills in question, practical ablity discussed, is command of SQL functions, queries, subqueries, etc. There are those which are basic ones.
After broswing pretty much any SQL tutorial online, those will the most pervasive ones. A person who completed a basic course in SQL - like the one offered by Vertabelo Academy, but not necessarily this one, is likely to know them very well. Then, after simple things are understood, tasks become more difficult, as the challenges require knowledge of other functions or combining the ones already known, also possibly coming up with a complex query, made of several more simple ones.
How testing is a tool to learn
And this is how SQL practice proves itself an indispensible tool in learning process - as it allows a learner to refresh everything - the whole structure is somehow updated. And the timeline in learning is also a bit complex one - if a person is completing a task, requiring, let's say, usage of simple SELECT queries, it's a different task, really, if a person takes it only for the first time, and a completely dfferent one, when there is some knowledge and skill already built upon it. If you are interested in top quality resources for SQL practice, visit the pages of Vertabelo Academy!
https://academy.vertabelo.com/course/sql-practice-set
