To keep all this under control, various filters and data breakdowns are available. Sounds like something from one of Orwell's books? Let me just add that you can analyze almost every possible search query, keyword, and their history since 2004. Google allows you to use its browser data and analyze what people are searching for and when they do it most often. The sheer volume of data from which you can choose is overwhelming!
They can be compiled and analyzed practically freely. So why not use this for your SQL practice? Google Trends is one of the largest public data sets available. Every click, every query entered into the search engine, everything is tracked and saved. Instead, I want to share with you other interesting data sets and have selected seven free sources of databases that are great for practicing SQL. However, since they are so common today, I will not point to any specific one of those. There are tons of great databases that keep track of contagions and deaths. Databases on the spread of COVID-19 around the world should be at the top of my list.
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