SQL¶

SQl is a database language used to create, read, update and delete data from a database.

SQL = Structured Query Language

Why SQL?¶

SQL is a very important language, because it is used in many applications. For example, if you want to create a website with users (with relations), you can use SQL to store the users in a database.

With SQL you can create relations in your database. This means, that you can connect data from different tables. For example, you can create a table with users and a table with posts. Now you can connect the posts to the users with a relation. This allows you to create a post and connect it to a user.