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What is SQL?
SQL, standing for Structured Query Language, is a tool enabling users with varying levels of technical expertise to perform operations such as querying, modifying, and managing data within a relational database system. Its straightforward nature makes SQL databases a reliable and scalable option for data storage across countless websites and mobile apps.
What is a relational database?
Before we start with SQL syntax, it's key to know what a relational database is. Think of it as a bunch of related tables, much like sheets in an Excel workbook. Each table has columns with names (these are like the table's properties) and as many rows of data as you need. To learn more about relational databases, check out our first lesson.