What is SQL?
SQL stands for Structured Query Language. A query language is a kind of programming language that’s designed to facilitate retrieving specific information from databases, and that’s exactly what SQL does. To put it simply, SQL is the language of databases.

That matters because most companies store their data in databases. And while there are many types of databases (like MySQL, PostgreSQL, Microsoft SQL Server), most of them speak SQL, so once you’ve got SQL basics under your belt, you’ll be able to work with any of them.

Even if you’re planning to do your analysis with another language like Python, at most companies, chances are you’ll need to use SQL to retrieve the data you need from the company’s database. As of this writing, there are more than 80,000 SQL jobs listed on Indeed in the US alone.

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