Indeed, in the modern world, storing large volumes of data on paper is neither convenient nor efficient. This is why databases were invented, wherein substantial amounts of information are stored, organized, and exchanged.
SQL (Structured Query Language) is the standardized programming language for relational databases. In other words, it's the language we use to interact with databases.
A Relational Database is a database represented in a tabular form where data can be accessed and retrieved in various ways without reorganizing the database.
This solution was introduced in 1970 and was initially known as SEQUEL (Structured English Query Language), but the name was later shortened to SQL. Oracle was the first company to offer such a system for managing relational databases.